64MB Cache, 5400 RPM NAS Grade Drives 3 Years Limited Warranty --WD Red is the only hard drive for NAS systems that have 1-8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. WD Red NAS hard drives are built and tested for Home and SMB NAS that are typically 1-8 Bay. For 8 Bay +, Red Pro and Ultrastar drives are recommended. overview Why Red Application Specifications FAQ Downloads overview Fill your NAS with WD Red, then fill it with awesome. There's an industry-leading WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 8TB, WD Red offers a wide array of solutions for customers looking to build the biggest, best-performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next. Exclusive NASware 3.0 Not just any drive will do. In single-bay to 8-bay NAS systems, WD Red raises the bar. Get as much as 64TB capacity, and with WD's exclusive NASware 3.0, you can optimize every single one of them. Built into every WD Red hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for optimum NAS compatibility Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware are. Our exclusive technology takes the guesswork out of selecting a drive. WD Red is for small NAS systems, and our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, WD Red is the most compatible drive available for NAS enclosures. But don't take our word for it. WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.* *Compatibility list as of March 2016 Why Red In a Network Attached Storage device, a desktop hard drive is not designed for NAS environments. Do right by your NAS and choose the drive with an array of features to preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Without being tested for compatibility with your NAS system, optimum performance is not guaranteed. Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is. Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue. Noise and Vibration Protection: Designed to operate solo, desktop drives offer little or no protection from the noise and vibration faced in a multi-drive system. WD Red drives are designed for multi-bay NAS systems. For Home, SME and Big Businesses WD Red for Home Stream, backup, share and organize your digital content at home with a NAS and WD Red drives designed to effortlessly share content to the devices in your home. Red NASware increases your drives' compatibility with your devices, TV, stereo and more. Live in a connected world. WD Red for Small Business Businesses thrive on productivity and efficiency two of the guiding principles built into the design of WD Red. It's the hard drive of choice for 1 to 8 bay systems. NASware 3.0 allows for seamless integration with your existing network so WD Red can share and backup files at the speed of your business. And for larger businesses with up to 16 bays, count on WD Red Pro. WD Red Pro for Big Business If you're looking for maximum performance in a heavy use NAS, WD Red Pro delivers the same exceptional performance for the business customer. For NAS environments with 8 to 16 bays, WD Red Pro is designed to handle an increase in workload and comes with a 5-year limited warranty. Specifications Model # Capacity Interface RPM Class Cache WD101EFAX 10TB SATA 6Gb s 5400RPM 256MB WD80EFAX 8TB SATA 6Gb s 5400RPM 256MB WD60EFAX 6TB SATA 6Gb s 5400RPM 256MB WD40EFRX 4TB SATA 6Gb s 5400RPM 64MB WD30EFRX 3TB SATA 6Gb s 5400RPM 64MB WD20EFAX 2TB SATA 6Gb s 5400RPM 256MB WD10EFRX 10TB SATA 6Gb s 5400RPM 64MB FAQ What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Red drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. They work well with Desktops also. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Red drives ? All the Red drives spin at 5400 RPM, since they are optimized to run Cool in a multi drive NAS array. How much Cache in MB do WD Red Drives have ? 1TB Red has 16MB or 64MB cahce ( Old/New Part number) 2,6TB Red has 64/256MB cache ( Old/New Part number) 3,4TB Red has 64MB Cache 8,10,12TB Red has 256MB Cache 14TB Red has 512MB Cache What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD RED NAS Hard Drive Data Sheet

256MB Cache, 5400 RPM NAS Grade Drives 3 Years Limited Warranty --WD Red is the only hard drive for NAS systems that have 1-8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. WD Red NAS hard drives are built and tested for Home and SMB NAS that are typically 1-8 Bay. For 8 Bay +, Red Pro and Ultrastar drives are recommended. overview Why Red Application Specifications FAQ Downloads overview Fill your NAS with WD Red, then fill it with awesome. There's an industry-leading WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 8TB, WD Red offers a wide array of solutions for customers looking to build the biggest, best-performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next. Exclusive NASware 3.0 Not just any drive will do. In single-bay to 8-bay NAS systems, WD Red raises the bar. Get as much as 64TB capacity, and with WD's exclusive NASware 3.0, you can optimize every single one of them. Built into every WD Red hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for optimum NAS compatibility Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware are. Our exclusive technology takes the guesswork out of selecting a drive. WD Red is for small NAS systems, and our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, WD Red is the most compatible drive available for NAS enclosures. But don't take our word for it. WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.* *Compatibility list as of March 2016 Why Red In a Network Attached Storage device, a desktop hard drive is not designed for NAS environments. Do right by your NAS and choose the drive with an array of features to preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Without being tested for compatibility with your NAS system, optimum performance is not guaranteed. Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is. Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue. Noise and Vibration Protection: Designed to operate solo, desktop drives offer little or no protection from the noise and vibration faced in a multi-drive system. WD Red drives are designed for multi-bay NAS systems. For Home, SME and Big Businesses WD Red for Home Stream, backup, share and organize your digital content at home with a NAS and WD Red drives designed to effortlessly share content to the devices in your home. Red NASware increases your drives' compatibility with your devices, TV, stereo and more. Live in a connected world. WD Red for Small Business Businesses thrive on productivity and efficiency two of the guiding principles built into the design of WD Red. It's the hard drive of choice for 1 to 8 bay systems. NASware 3.0 allows for seamless integration with your existing network so WD Red can share and backup files at the speed of your business. And for larger businesses with up to 16 bays, count on WD Red Pro. WD Red Pro for Big Business If you're looking for maximum performance in a heavy use NAS, WD Red Pro delivers the same exceptional performance for the business customer. For NAS environments with 8 to 16 bays, WD Red Pro is designed to handle an increase in workload and comes with a 5-year limited warranty. Specifications Model # Capacity Interface RPM Class Cache WD101EFAX 10TB SATA 6Gb s 5400RPM 256MB WD80EFAX 8TB SATA 6Gb s 5400RPM 256MB WD60EFAX 6TB SATA 6Gb s 5400RPM 256MB WD40EFAX 4TB SATA 6Gb s 5400RPM 256MB WD30EFRX 3TB SATA 6Gb s 5400RPM 64MB WD20EFAX 2TB SATA 6Gb s 5400RPM 256MB WD10EFRX 10TB SATA 6Gb s 5400RPM 64MB FAQ What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Red drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. They work well with Desktops also. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Red drives ? All the Red drives spin at 5400 RPM, since they are optimized to run Cool in a multi drive NAS array. How much Cache in MB do WD Red Drives have ? 1TB Red has 16MB or 64MB cahce ( Old/New Part number) 2,6TB Red has 64/256MB cache ( Old/New Part number) 3,4TB Red has 64MB Cache 8,10,12TB Red has 256MB Cache 14TB Red has 512MB Cache What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD RED NAS Hard Drive Data Sheet

64MB Cache, 5400 RPM NAS Grade Drives 3 Years Limited Warranty --WD Red is the only hard drive for NAS systems that have 1-8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. WD Red NAS hard drives are built and tested for Home and SMB NAS that are typically 1-8 Bay. For 8 Bay +, Red Pro and Ultrastar drives are recommended. overview Why Red Application Specifications FAQ Downloads overview Fill your NAS with WD Red, then fill it with awesome. There's an industry-leading WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 8TB, WD Red offers a wide array of solutions for customers looking to build the biggest, best-performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next. Exclusive NASware 3.0 Not just any drive will do. In single-bay to 8-bay NAS systems, WD Red raises the bar. Get as much as 64TB capacity, and with WD's exclusive NASware 3.0, you can optimize every single one of them. Built into every WD Red hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for optimum NAS compatibility Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware are. Our exclusive technology takes the guesswork out of selecting a drive. WD Red is for small NAS systems, and our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, WD Red is the most compatible drive available for NAS enclosures. But don't take our word for it. WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.* *Compatibility list as of March 2016 Why Red In a Network Attached Storage device, a desktop hard drive is not designed for NAS environments. Do right by your NAS and choose the drive with an array of features to preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Without being tested for compatibility with your NAS system, optimum performance is not guaranteed. Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is. Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue. Noise and Vibration Protection: Designed to operate solo, desktop drives offer little or no protection from the noise and vibration faced in a multi-drive system. WD Red drives are designed for multi-bay NAS systems. For Home, SME and Big Businesses WD Red for Home Stream, backup, share and organize your digital content at home with a NAS and WD Red drives designed to effortlessly share content to the devices in your home. Red NASware increases your drives' compatibility with your devices, TV, stereo and more. Live in a connected world. WD Red for Small Business Businesses thrive on productivity and efficiency two of the guiding principles built into the design of WD Red. It's the hard drive of choice for 1 to 8 bay systems. NASware 3.0 allows for seamless integration with your existing network so WD Red can share and backup files at the speed of your business. And for larger businesses with up to 16 bays, count on WD Red Pro. WD Red Pro for Big Business If you're looking for maximum performance in a heavy use NAS, WD Red Pro delivers the same exceptional performance for the business customer. For NAS environments with 8 to 16 bays, WD Red Pro is designed to handle an increase in workload and comes with a 5-year limited warranty. Specifications Model # Capacity Interface RPM Class Cache WD101EFAX 10TB SATA 6Gb s 5400RPM 256MB WD80EFAX 8TB SATA 6Gb s 5400RPM 256MB WD60EFAX 6TB SATA 6Gb s 5400RPM 256MB WD40EFRX 4TB SATA 6Gb s 5400RPM 64MB WD30EFRX 3TB SATA 6Gb s 5400RPM 64MB WD20EFAX 2TB SATA 6Gb s 5400RPM 256MB WD10EFRX 10TB SATA 6Gb s 5400RPM 64MB FAQ What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Red drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. They work well with Desktops also. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Red drives ? All the Red drives spin at 5400 RPM, since they are optimized to run Cool in a multi drive NAS array. How much Cache in MB do WD Red Drives have ? 1TB Red has 16MB or 64MB cahce ( Old/New Part number) 2,6TB Red has 64/256MB cache ( Old/New Part number) 3,4TB Red has 64MB Cache 8,10,12TB Red has 256MB Cache 14TB Red has 512MB Cache What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD RED NAS Hard Drive Data Sheet

2TB, SATA, 256MB Cache, 5400 RPM NAS Grade Drives 3 Years Limited Warranty --WD Red is the only hard drive for NAS systems that have 1-8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. WD Red NAS hard drives are built and tested for Home and SMB NAS that are typically 1-8 Bay. For 8 Bay +, Red Pro and Ultrastar drives are recommended. overview Why Red Application Specifications FAQ Downloads overview Fill your NAS with WD Red, then fill it with awesome. There's an industry-leading WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 8TB, WD Red offers a wide array of solutions for customers looking to build the biggest, best-performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next. Exclusive NASware 3.0 Not just any drive will do. In single-bay to 8-bay NAS systems, WD Red raises the bar. Get as much as 64TB capacity, and with WD's exclusive NASware 3.0, you can optimize every single one of them. Built into every WD Red hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for optimum NAS compatibility Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware are. Our exclusive technology takes the guesswork out of selecting a drive. WD Red is for small NAS systems, and our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, WD Red is the most compatible drive available for NAS enclosures. But don't take our word for it. WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.* *Compatibility list as of March 2016 Why Red In a Network Attached Storage device, a desktop hard drive is not designed for NAS environments. Do right by your NAS and choose the drive with an array of features to preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Without being tested for compatibility with your NAS system, optimum performance is not guaranteed. Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is. Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue. Noise and Vibration Protection: Designed to operate solo, desktop drives offer little or no protection from the noise and vibration faced in a multi-drive system. WD Red drives are designed for multi-bay NAS systems. For Home, SME and Big Businesses WD Red for Home Stream, backup, share and organize your digital content at home with a NAS and WD Red drives designed to effortlessly share content to the devices in your home. Red NASware increases your drives' compatibility with your devices, TV, stereo and more. Live in a connected world. WD Red for Small Business Businesses thrive on productivity and efficiency two of the guiding principles built into the design of WD Red. It's the hard drive of choice for 1 to 8 bay systems. NASware 3.0 allows for seamless integration with your existing network so WD Red can share and backup files at the speed of your business. And for larger businesses with up to 16 bays, count on WD Red Pro. WD Red Pro for Big Business If you're looking for maximum performance in a heavy use NAS, WD Red Pro delivers the same exceptional performance for the business customer. For NAS environments with 8 to 16 bays, WD Red Pro is designed to handle an increase in workload and comes with a 5-year limited warranty. Specifications Model # Capacity Interface RPM Class Cache WD101EFAX 10TB SATA 6Gb s 5400RPM 256MB WD80EFAX 8TB SATA 6Gb s 5400RPM 256MB WD60EFAX 6TB SATA 6Gb s 5400RPM 256MB WD40EFRX 4TB SATA 6Gb s 5400RPM 64MB WD30EFRX 3TB SATA 6Gb s 5400RPM 64MB WD20EFAX 2TB SATA 6Gb s 5400RPM 256MB WD10EFRX 10TB SATA 6Gb s 5400RPM 64MB FAQ What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Red drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. They work well with Desktops also. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Red drives ? All the Red drives spin at 5400 RPM, since they are optimized to run Cool in a multi drive NAS array. How much Cache in MB do WD Red Drives have ? 1TB Red has 16MB or 64MB cahce ( Old/New Part number) 2,6TB Red has 64/256MB cache ( Old/New Part number) 3,4TB Red has 64MB Cache 8,10,12TB Red has 256MB Cache 14TB Red has 512MB Cache What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD RED NAS Hard Drive Data Sheet

CMR Drive Red Plus series   -- WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR

1TB, SATA, 256MB Cache, 5400 RPM NAS Grade Drives 3 Years Limited Warranty --WD Red is the only hard drive for NAS systems that have 1-8 drive bays. The drives are designed and extensively tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS. WD Red NAS hard drives are built and tested for Home and SMB NAS that are typically 1-8 Bay. For 8 Bay +, Red Pro and Ultrastar drives are recommended. overview Why Red Application Specifications FAQ Downloads overview Fill your NAS with WD Red, then fill it with awesome. There's an industry-leading WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 8TB, WD Red offers a wide array of solutions for customers looking to build the biggest, best-performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD Red packs the power to store your precious data in one powerhouse unit. With WD Red, you're ready for what's next. Exclusive NASware 3.0 Not just any drive will do. In single-bay to 8-bay NAS systems, WD Red raises the bar. Get as much as 64TB capacity, and with WD's exclusive NASware 3.0, you can optimize every single one of them. Built into every WD Red hard drive, NASware 3.0's advanced technology improves your system's storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for optimum NAS compatibility Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware are. Our exclusive technology takes the guesswork out of selecting a drive. WD Red is for small NAS systems, and our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, WD Red is the most compatible drive available for NAS enclosures. But don't take our word for it. WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market.* *Compatibility list as of March 2016 Why Red In a Network Attached Storage device, a desktop hard drive is not designed for NAS environments. Do right by your NAS and choose the drive with an array of features to preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Without being tested for compatibility with your NAS system, optimum performance is not guaranteed. Reliability: The always-on environment of a NAS or RAID is a hot one. And desktop drives aren't typically designed and tested in those conditions. WD Red is. Error recovery Controls: WD Red NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Desktop drives are typically not designed for RAID environments where this can be an issue. Noise and Vibration Protection: Designed to operate solo, desktop drives offer little or no protection from the noise and vibration faced in a multi-drive system. WD Red drives are designed for multi-bay NAS systems. For Home, SME and Big Businesses WD Red for Home Stream, backup, share and organize your digital content at home with a NAS and WD Red drives designed to effortlessly share content to the devices in your home. Red NASware increases your drives' compatibility with your devices, TV, stereo and more. Live in a connected world. WD Red for Small Business Businesses thrive on productivity and efficiency two of the guiding principles built into the design of WD Red. It's the hard drive of choice for 1 to 8 bay systems. NASware 3.0 allows for seamless integration with your existing network so WD Red can share and backup files at the speed of your business. And for larger businesses with up to 16 bays, count on WD Red Pro. WD Red Pro for Big Business If you're looking for maximum performance in a heavy use NAS, WD Red Pro delivers the same exceptional performance for the business customer. For NAS environments with 8 to 16 bays, WD Red Pro is designed to handle an increase in workload and comes with a 5-year limited warranty. Specifications Model # Capacity Interface RPM Class Cache WD101EFAX 10TB SATA 6Gb s 5400RPM 256MB WD80EFAX 8TB SATA 6Gb s 5400RPM 256MB WD60EFAX 6TB SATA 6Gb s 5400RPM 256MB WD40EFRX 4TB SATA 6Gb s 5400RPM 64MB WD30EFRX 3TB SATA 6Gb s 5400RPM 64MB WD20EFAX 2TB SATA 6Gb s 5400RPM 256MB WD10EFRX 1TB SATA 6Gb s 5400RPM 64MB FAQ What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Red drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. They work well with Desktops also. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Red drives ? All the Red drives spin at 5400 RPM, since they are optimized to run Cool in a multi drive NAS array. How much Cache in MB do WD Red Drives have ? 1TB Red has 16MB or 64MB cahce ( Old/New Part number) 2,6TB Red has 64/256MB cache ( Old/New Part number) 3,4TB Red has 64MB Cache 8,10,12TB Red has 256MB Cache 14TB Red has 512MB Cache What is the Highest Capacity of WD RED Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD RED NAS Hard Drive Data Sheet

CMR Drive Red Plus series --WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB) Full Specifications Capacity 14 TB Cache Size 512 MB Disk Speed (RPM) 7200rpm Interface SATA Cache Size (MB) 512MB Transfer Rate up to 210MB/s Compatibility Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS. Dimensions (L X W X H) 146.99mm x 101.6mm x 26.11mm Warranty 3-Year Limited Warranty Product Numbers WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB)

CMR Drive Red Plus series --WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB) Full Specifications Capacity 12 TB Cache Size 256 MB Disk Speed (RPM) 7200rpm Interface SATA Cache Size (MB) 256MB Transfer Rate up to 196MB/s Compatibility Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS. Dimensions (L X W X H) 146.99mm x 101.6mm x 26.11mm Warranty 3-Year Limited Warranty Product Numbers WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB)

CMR Drive Red Plus series --WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB) Full Specifications Capacity 10 TB Cache Size 256 MB Disk Speed (RPM) 7200rpm Interface SATA Cache Size (MB) 256MB Transfer Rate up to 215MB/s Compatibility Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS. Dimensions (L X W X H) 146.99mm x 101.6mm x 26.11mm Warranty 3-Year Limited Warranty Product Numbers WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB)

CMR Drive Red Plus series --WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB) Full Specifications Capacity 8 TB Cache Size 256 MB Disk Speed (RPM) 7200rpm Interface SATA Cache Size (MB) 256MB Transfer Rate up to 210MB/s Compatibility Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS. Dimensions (L X W X H) 146.99mm x 101.6mm x 26.11mm Warranty 3-Year Limited Warranty Product Numbers WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB)

CMR Drive Red Plus series --WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB) Full Specifications Capacity 4 TB Cache Size 128 MB Disk Speed (RPM) 5400rpm Interface SATA Cache Size (MB) 128MB Transfer Rate up to 175MB/s Compatibility Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS. Dimensions (L X W X H) 146.99mm x 101.6mm x 26.11mm Warranty 3-Year Limited Warranty Product Numbers WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB)

CMR Drive Red Plus series --WD Red™ Plus NAS Hard Drive 3.5" Tackle Intensity with WD Red™ Plus Packed with power to handle the small- to medium-sized business NAS environments and increased workloads1 for SOHO customers, WD Red™ Plus is ideal for archiving and sharing, as well as RAID array rebuilding on systems using ZFS and other file systems. Built and tested for up to 8-bay NAS systems, these drives give you the flexibility, versatility, and confidence in storing and sharing your precious home and work files. For Small or Medium Businesses Stream, backup, share, and organize your digital content with a NAS and WD Red™ Plus drives designed to effortlessly share content with the devices at your home or business. NASware™ 3.0 technology increases your drives’ compatibility with your existing network and devices. For larger businesses with up to 24 bays, count on WD Red™ Pro drives to deliver exceptional performance. Exclusive NASware 3.0 Not just any drive will do. Get up to 112TB of capacity in your 8-bay NAS system and with Western Digital's exclusive NASware 3.0 technology, you can optimize each and every drive. Built into every WD Red™ Plus hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Plus drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Plus drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Plus drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. WD Red™ Pro for Big Business If you’re looking for heavy duty performance for NAS, WD Red™ Pro drives deliver exceptional performance for the medium to large business customer with extreme demands. For NAS environments with 9 to 24 bays, WD Red™ Pro drives deliver uncompromising performance and unwavering assurance backed by a 5-year limited warranty. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. 24/7 Environment Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red™ Plus drive is engineered to tackle 24x7 environments. Premium Support and a 3-year Limited Warranty Confidently upgrade your NAS performance with the assurance of a 3-year limited warranty, coupled with world-class support services included with every WD Red™ Plus drive. Desktop Drives vs. WD Red™ Plus Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren’t typically designed and tested under those conditions like WD Red™ Plus drives are. Error Recovery Controls: WD Red™ Plus NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red™ Plus drives are designed to thrive in multi-bay NAS system environments. Recording Technology : CMR WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB) Full Specifications Capacity 3 TB Cache Size 128 MB Disk Speed (RPM) 5400rpm Interface SATA Cache Size (MB) 128MB Transfer Rate up to 175MB/s Compatibility Designed with CMR technology for small or medium-sized businesses in RAID-optimized NAS systems with up to 8 bays. Perfect for handling increased workloads, including expanded OS compatibility and ZFS. Dimensions (L X W X H) 146.99mm x 101.6mm x 26.11mm Warranty 3-Year Limited Warranty Product Numbers WD10EFRX (1TB) WD20EFRX (2TB) WD30EFRX (3TB) WD40EFRX (4TB) WD60EFRX (6TB) WD80EFAX (8TB) WD101EFAX (10TB) WD120EFAX (12TB) WD140EFFX (14TB)

This is 22TB Enterprise Grade 10 Disk platform drive. WD 22TB Ultrastar has OptiNAND technology with ArmorCache. --dcsplit--

20TB Highest Capacity Enterprise Grade 5 Years Limited Warranty -- Ultrastar DC HC560 20TB capacity with a reimagined HDD An innovative storage architecture to help our customers meet their need for exponential data growth. Reimagining the HDD to Meet the Growth of Data Hyperscale cloud, CSPs, enterprises, smart video surveillance partners, NAS suppliers and more need storage solutions to meet the exponential growth in data creation. When it comes to cost-effective storage of data at scale, hard disk drives (HDDs) continue to play a central role. HDDs deliver the capacity, performance and reliability needed to store vast amounts of data today and well into the future. Investments in HDD technology remain critical to supporting worldwide data growth. Western Digital has developed flash-enhanced drives with OptiNAND™ technology by vertically integrating our leading NAND flash with our world-class HDDs. Western Digital HDDs have been leaders in areal density with industry first technologies of energy-assisted magnetic recording technology (EAMR), triple-stage actuator (TSA), HelioSeal®, and now OptiNAND technology. Higher areal density means higher capacities to meet storage challenges. 20TB HDDs with OptiNAND Technology OptiNAND integrates an iNAND® Universal Flash Storage (UFS) Embedded Flash Drive (EFD) with traditional spinning disk media, and incorporates innovative changes to the firmware algorithm and system-on-a-chip (SoC). OptiNAND is not a hybrid technology. The drive works smarter, with enhanced firmware algorithms taking advantage of expanded metadata that has been offloaded to the iNAND, enabling more tracks per inch (TPI) with resulting increased areal density. The Ultrastar DC HC560, with the first implementation of OptiNAND technology’s capacity-enabling features, delivers an unbeaten 20TB capacity in a nine-disk platform (2.2TB/platter) with CMR recording format. Specifications Capacity : 20TB Interface : SATA Connector : SATA Cache size : 512MB Dimensions (LxWxH) : 5.76" x 4" x 1.03" Compatability : Compatabile with windows, windows server and linux 20 TB : SED 0F38754 20 TB : SE 0F38755

18TB Highest Capacity Enterprise Grade 5 Years Limited Warranty --Ultrastar® DC HC550 3.5-INCH HELIUM PLATFORM DATA CENTER HARD DRIVES Highlights 18/16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environment Reliable, field-proven, 6th generation design Industry’s first HDD with Energy Assisted Magnetic Recording technology Industry’s first Triple Stage Actuator HelioSeal® design delivers outstanding power efficiency (Watts/TB) Self-Encrypting Drive Options 2.5M hours (projected) MTBF rating & 5-year limited warranty Applications Cloud & Hyperscale storage Distributed File Systems Bulk storage using object storage solutions like Ceph™ and OpenStack® Swift Primary and secondary storage for Apache Hadoop® for Big Data Analytics Massive scale-out (MSO), high-density data centers Total Cost of Ownership (TCO) Drives the DataCenter Architecture Data center decisions are driven by TCO. Higher capacity hard drives play a leading rolein reducing TCO. An 18TB data center HDD provides 29% more capacity in the sameform factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CAPEX by reducing supporting hardware and system level costs when compared to lower capacitydrives. Helium-sealed, low power, high reliability drives reduce energy and maintenancecosts, contributing to OPEX savings. For example, a data center using 18TB HDDs vs. 14TBHDDs requires 22% fewer racks while consuming 21% less power per TB at idle, resulting insignificant overall TCO reduction for data center environments Raising the Capacity Bar with New Technologies Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create anew class of HDDs. 18TB capacity is achieved by combining technologies that improveareal density working together with technologies that improve IOPS and reduce power consumption The first HDD in the industry to harness Energy Assisted Magnetic Recording (EAMR)technology that enables higher media precision and therefore increased areal density The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy,applications & environmentsdelivering better performance and data integrity to increase areal density. HelioSeal® technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date Trusted Reliability and Quality for Data at Scale With its massive capacity and 2.5M MTBF (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions. The DC HC550 offers security and encryption options to help protect data fromunauthorized use, including SED models in both SATA & SAS. An optional SED-FIPS will be available in a SAS configuration. Trust Western Digital and the Ultrastar DC HC550 hard drive to deliver highest capacity, lower TCO and more value to your data center. Features and Benefits Feature / Function Benefits Capacity 18/16TB Provides 29% more capacity than 14TB helium-drives Power Efficiency Ultra-low Watts per terabyte (W/TB) 21% lower idle W/TB than 14TB Ultrastar helium-filled drives Performance Triple Stage Actuator and Two-Dimensional Magnetic Recording (TDMR) technology Rotational Vibration Safeguard (RVS) Media Cache Plus architecture SATA 6Gb/s & SAS 12Gb/s 512MB cache buffer More accurate head positioning, especially in multi-drive environments, for better performance and data integrity Maintains drive performance in high rotational vibration environments and multi-drive systems Better random write performance Provides compatibility with high-performance data centers Improves response time and data management Reliability Dual Safe, RSA-signed firmware 2.5M hours MTBF² and 0.35% AFR 5-year limited warranty Retains previous firmware version for safe firmware updates, verified with an RSA signature Unsurpassed reliability rating for Capacity Enterprise HDD for fewer failures/less service needs Unbeaten for enterprise-class hard drives Data Security Encryption options on both SATA and SAS models Hardware-based encryption helps protect data from unauthorized use (SED options) Specifications SATA Models SAS Models Model Number WUH721818ALE6Lz WUH721818AL52z Configuration Interface SATA 6Gb/s SAS 12Gb/s Capacity 18/16TB - Format : Sector size (bytes) 4Kn: 4096 512e: 512 4Kn: 4096, 4160, 4224 512e: 512, 520, 528 Areal Density (Gbits/sq. in, max) 1022 (18TB), 918 (16TB) Performance Data buffer4 (MB) 512 - Rotational speed (RPM) 7200 - Latency average (ms) 4.16 - Interface transfer rate (MB/s, max) 600 1200 Sustained transfer rate (MiB/s, max) 257 (18TB), 250 (16TB) - Reliability Error rate (non-recoverable bits read) 1 in 10 - Load/Unload cycles (at 40°C) 600,000 - Availability (hrs/day x days/wk) 24 x 7 - MTBF2 (M hours, projected) 2.5 - Annualized Failure Rate (AFR, projected) 0.35% - Workloads Up to 550 TB/year - Limited warranty (yrs) 5 - Acoustics Idle/Operating (Bels, typical) 2.0/3.6 - Power Requirement +5 VDC, +12VDC - Operating6 (W) 6.5 8.8 Idle (W) 5.6 5.8 Power consumption efficiency at idle (W/TB) 18TB 16TB 0.31 0.35 0.32 0.36 Physical Size z-height (mm) 26.1 - Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 - Weight (g, max) 690 - Environmental (Operating) Ambient temperature 5° to 60°C - Shock (half-sine wave, 2ms, G) 50 - Vibration (G RMS, 5 to 500Hz) 0.67 (XYZ) - Environmental (Non-operating) Ambient temperature -40° to 70°C - Shock (half-sine wave, 2ms, G) 250 (2ms) - Vibration (G RMS, 2 to 200Hz) 1.04 (XYZ) -

16TB HC550 Enterprise Drive 5 Years Limited Warranty --Ultrastar® DC HC550 3.5-INCH HELIUM PLATFORM DATA CENTER HARD DRIVES Highlights 18/16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environment Reliable, field-proven, 6th generation design Industry’s first HDD with Energy Assisted Magnetic Recording technology Industry’s first Triple Stage Actuator HelioSeal® design delivers outstanding power efficiency (Watts/TB) Self-Encrypting Drive Options 2.5M hours (projected) MTBF rating & 5-year limited warranty Applications Cloud & Hyperscale storage Distributed File Systems Bulk storage using object storage solutions like Ceph™ and OpenStack® Swift Primary and secondary storage for Apache Hadoop® for Big Data Analytics Massive scale-out (MSO), high-density data centers Total Cost of Ownership (TCO) Drives the DataCenter Architecture Data center decisions are driven by TCO. Higher capacity hard drives play a leading rolein reducing TCO. An 18TB data center HDD provides 29% more capacity in the sameform factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CAPEX by reducing supporting hardware and system level costs when compared to lower capacitydrives. Helium-sealed, low power, high reliability drives reduce energy and maintenancecosts, contributing to OPEX savings. For example, a data center using 18TB HDDs vs. 14TBHDDs requires 22% fewer racks while consuming 21% less power per TB at idle, resulting insignificant overall TCO reduction for data center environments Raising the Capacity Bar with New Technologies Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create anew class of HDDs. 18TB capacity is achieved by combining technologies that improveareal density working together with technologies that improve IOPS and reduce power consumption The first HDD in the industry to harness Energy Assisted Magnetic Recording (EAMR)technology that enables higher media precision and therefore increased areal density The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy,applications & environmentsdelivering better performance and data integrity to increase areal density. HelioSeal® technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date Trusted Reliability and Quality for Data at Scale With its massive capacity and 2.5M MTBF (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions. The DC HC550 offers security and encryption options to help protect data fromunauthorized use, including SED models in both SATA & SAS. An optional SED-FIPS will be available in a SAS configuration. Trust Western Digital and the Ultrastar DC HC550 hard drive to deliver highest capacity, lower TCO and more value to your data center. Features and Benefits Feature / Function Benefits Capacity 18/16TB Provides 29% more capacity than 14TB helium-drives Power Efficiency Ultra-low Watts per terabyte (W/TB) 21% lower idle W/TB than 14TB Ultrastar helium-filled drives Performance Triple Stage Actuator and Two-Dimensional Magnetic Recording (TDMR) technology Rotational Vibration Safeguard (RVS) Media Cache Plus architecture SATA 6Gb/s & SAS 12Gb/s 512MB cache buffer More accurate head positioning, especially in multi-drive environments, for better performance and data integrity Maintains drive performance in high rotational vibration environments and multi-drive systems Better random write performance Provides compatibility with high-performance data centers Improves response time and data management Reliability Dual Safe, RSA-signed firmware 2.5M hours MTBF² and 0.35% AFR 5-year limited warranty Retains previous firmware version for safe firmware updates, verified with an RSA signature Unsurpassed reliability rating for Capacity Enterprise HDD for fewer failures/less service needs Unbeaten for enterprise-class hard drives Data Security Encryption options on both SATA and SAS models Hardware-based encryption helps protect data from unauthorized use (SED options) Specifications SATA Models SAS Models Model Number WUH721816ALE6Lz WUH721816AL52z Configuration Interface SATA 6Gb/s SAS 12Gb/s Capacity 18/16TB - Format : Sector size (bytes) 4Kn: 4096 512e: 512 4Kn: 4096, 4160, 4224 512e: 512, 520, 528 Areal Density (Gbits/sq. in, max) 1022 (18TB), 918 (16TB) Performance Data buffer4 (MB) 512 - Rotational speed (RPM) 7200 - Latency average (ms) 4.16 - Interface transfer rate (MB/s, max) 600 1200 Sustained transfer rate (MiB/s, max) 257 (18TB), 250 (16TB) - Reliability Error rate (non-recoverable bits read) 1 in 10 - Load/Unload cycles (at 40°C) 600,000 - Availability (hrs/day x days/wk) 24 x 7 - MTBF2 (M hours, projected) 2.5 - Annualized Failure Rate (AFR, projected) 0.35% - Workloads Up to 550 TB/year - Limited warranty (yrs) 5 - Acoustics Idle/Operating (Bels, typical) 2.0/3.6 - Power Requirement +5 VDC, +12VDC - Operating6 (W) 6.5 8.8 Idle (W) 5.6 5.8 Power consumption efficiency at idle (W/TB) 18TB 16TB 0.31 0.35 0.32 0.36 Physical Size z-height (mm) 26.1 - Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 - Weight (g, max) 690 - Environmental (Operating) Ambient temperature 5° to 60°C - Shock (half-sine wave, 2ms, G) 50 - Vibration (G RMS, 5 to 500Hz) 0.67 (XYZ) - Environmental (Non-operating) Ambient temperature -40° to 70°C - Shock (half-sine wave, 2ms, G) 250 (2ms) - Vibration (G RMS, 2 to 200Hz) 1.04 (XYZ) -

512 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

128 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

This is 22TB Enterprise Grade 10 Disk platform drive. WD 22TB Ultrastar has OptiNAND technology with ArmorCache.   --dcsplit--

Enterprise Data Center Grade Drive 5 Years Limited Warranty --Ultrastar® DC HC550 3.5-INCH HELIUM PLATFORM DATA CENTER HARD DRIVES Highlights 18/16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environment Reliable, field-proven, 6th generation design Industry’s first HDD with Energy Assisted Magnetic Recording technology Industry’s first Triple Stage Actuator HelioSeal® design delivers outstanding power efficiency (Watts/TB) Self-Encrypting Drive Options 2.5M hours (projected) MTBF rating & 5-year limited warranty Applications Cloud & Hyperscale storage Distributed File Systems Bulk storage using object storage solutions like Ceph™ and OpenStack® Swift Primary and secondary storage for Apache Hadoop® for Big Data Analytics Massive scale-out (MSO), high-density data centers Total Cost of Ownership (TCO) Drives the DataCenter Architecture Data center decisions are driven by TCO. Higher capacity hard drives play a leading rolein reducing TCO. An 18TB data center HDD provides 29% more capacity in the sameform factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CAPEX by reducing supporting hardware and system level costs when compared to lower capacitydrives. Helium-sealed, low power, high reliability drives reduce energy and maintenancecosts, contributing to OPEX savings. For example, a data center using 18TB HDDs vs. 14TBHDDs requires 22% fewer racks while consuming 21% less power per TB at idle, resulting insignificant overall TCO reduction for data center environments Raising the Capacity Bar with New Technologies Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create anew class of HDDs. 18TB capacity is achieved by combining technologies that improveareal density working together with technologies that improve IOPS and reduce power consumption The first HDD in the industry to harness Energy Assisted Magnetic Recording (EAMR)technology that enables higher media precision and therefore increased areal density The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy,applications & environmentsdelivering better performance and data integrity to increase areal density. HelioSeal® technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date Trusted Reliability and Quality for Data at Scale With its massive capacity and 2.5M MTBF (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions. The DC HC550 offers security and encryption options to help protect data fromunauthorized use, including SED models in both SATA & SAS. An optional SED-FIPS will be available in a SAS configuration. Trust Western Digital and the Ultrastar DC HC550 hard drive to deliver highest capacity, lower TCO and more value to your data center. Features and Benefits Feature / Function Benefits Capacity 18/16TB Provides 29% more capacity than 14TB helium-drives Power Efficiency Ultra-low Watts per terabyte (W/TB) 21% lower idle W/TB than 14TB Ultrastar helium-filled drives Performance Triple Stage Actuator and Two-Dimensional Magnetic Recording (TDMR) technology Rotational Vibration Safeguard (RVS) Media Cache Plus architecture SATA 6Gb/s & SAS 12Gb/s 512MB cache buffer More accurate head positioning, especially in multi-drive environments, for better performance and data integrity Maintains drive performance in high rotational vibration environments and multi-drive systems Better random write performance Provides compatibility with high-performance data centers Improves response time and data management Reliability Dual Safe, RSA-signed firmware 2.5M hours MTBF² and 0.35% AFR 5-year limited warranty Retains previous firmware version for safe firmware updates, verified with an RSA signature Unsurpassed reliability rating for Capacity Enterprise HDD for fewer failures/less service needs Unbeaten for enterprise-class hard drives Data Security Encryption options on both SATA and SAS models Hardware-based encryption helps protect data from unauthorized use (SED options) Specifications SATA Models SAS Models Model Number WUH721818ALE6Lz WUH721818AL52z Configuration Interface SATA 6Gb/s SAS 12Gb/s Capacity 18/16TB - Format : Sector size (bytes) 4Kn: 4096 512e: 512 4Kn: 4096, 4160, 4224 512e: 512, 520, 528 Areal Density (Gbits/sq. in, max) 1022 (18TB), 918 (16TB) Performance Data buffer4 (MB) 512 - Rotational speed (RPM) 7200 - Latency average (ms) 4.16 - Interface transfer rate (MB/s, max) 600 1200 Sustained transfer rate (MiB/s, max) 257 (18TB), 250 (16TB) - Reliability Error rate (non-recoverable bits read) 1 in 10 - Load/Unload cycles (at 40°C) 600,000 - Availability (hrs/day x days/wk) 24 x 7 - MTBF2 (M hours, projected) 2.5 - Annualized Failure Rate (AFR, projected) 0.35% - Workloads Up to 550 TB/year - Limited warranty (yrs) 5 - Acoustics Idle/Operating (Bels, typical) 2.0/3.6 - Power Requirement +5 VDC, +12VDC - Operating6 (W) 6.5 8.8 Idle (W) 5.6 5.8 Power consumption efficiency at idle (W/TB) 18TB 16TB 0.31 0.35 0.32 0.36 Physical Size z-height (mm) 26.1 - Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 - Weight (g, max) 690 - Environmental (Operating) Ambient temperature 5° to 60°C - Shock (half-sine wave, 2ms, G) 50 - Vibration (G RMS, 5 to 500Hz) 0.67 (XYZ) - Environmental (Non-operating) Ambient temperature -40° to 70°C - Shock (half-sine wave, 2ms, G) 250 (2ms) - Vibration (G RMS, 2 to 200Hz) 1.04 (XYZ) -

Enterprise Data Center Grade Drive 5 Years Limited Warranty --Ultrastar® DC HC550 3.5-INCH HELIUM PLATFORM DATA CENTER HARD DRIVES Highlights 18/16TB capacity in a standard 3.5-inch form factor CMR technology works with all capacity enterprise applications & environment Reliable, field-proven, 6th generation design Industry’s first HDD with Energy Assisted Magnetic Recording technology Industry’s first Triple Stage Actuator HelioSeal® design delivers outstanding power efficiency (Watts/TB) Self-Encrypting Drive Options 2.5M hours (projected) MTBF rating & 5-year limited warranty Applications Cloud & Hyperscale storage Distributed File Systems Bulk storage using object storage solutions like Ceph™ and OpenStack® Swift Primary and secondary storage for Apache Hadoop® for Big Data Analytics Massive scale-out (MSO), high-density data centers Total Cost of Ownership (TCO) Drives the DataCenter Architecture Data center decisions are driven by TCO. Higher capacity hard drives play a leading rolein reducing TCO. An 18TB data center HDD provides 29% more capacity in the sameform factor as a 14TB HDD. Higher capacity HDDs enable data centers to lower CAPEX by reducing supporting hardware and system level costs when compared to lower capacitydrives. Helium-sealed, low power, high reliability drives reduce energy and maintenancecosts, contributing to OPEX savings. For example, a data center using 18TB HDDs vs. 14TBHDDs requires 22% fewer racks while consuming 21% less power per TB at idle, resulting insignificant overall TCO reduction for data center environments Raising the Capacity Bar with New Technologies Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create anew class of HDDs. 18TB capacity is achieved by combining technologies that improveareal density working together with technologies that improve IOPS and reduce power consumption The first HDD in the industry to harness Energy Assisted Magnetic Recording (EAMR)technology that enables higher media precision and therefore increased areal density The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy,applications & environmentsdelivering better performance and data integrity to increase areal density. HelioSeal® technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date Trusted Reliability and Quality for Data at Scale With its massive capacity and 2.5M MTBF (projected) reliability rating, the Ultrastar DC HC550 is ideal for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions. The DC HC550 offers security and encryption options to help protect data fromunauthorized use, including SED models in both SATA & SAS. An optional SED-FIPS will be available in a SAS configuration. Trust Western Digital and the Ultrastar DC HC550 hard drive to deliver highest capacity, lower TCO and more value to your data center. Features and Benefits Feature / Function Benefits Capacity 18/16TB Provides 29% more capacity than 14TB helium-drives Power Efficiency Ultra-low Watts per terabyte (W/TB) 21% lower idle W/TB than 14TB Ultrastar helium-filled drives Performance Triple Stage Actuator and Two-Dimensional Magnetic Recording (TDMR) technology Rotational Vibration Safeguard (RVS) Media Cache Plus architecture SATA 6Gb/s & SAS 12Gb/s 512MB cache buffer More accurate head positioning, especially in multi-drive environments, for better performance and data integrity Maintains drive performance in high rotational vibration environments and multi-drive systems Better random write performance Provides compatibility with high-performance data centers Improves response time and data management Reliability Dual Safe, RSA-signed firmware 2.5M hours MTBF² and 0.35% AFR 5-year limited warranty Retains previous firmware version for safe firmware updates, verified with an RSA signature Unsurpassed reliability rating for Capacity Enterprise HDD for fewer failures/less service needs Unbeaten for enterprise-class hard drives Data Security Encryption options on both SATA and SAS models Hardware-based encryption helps protect data from unauthorized use (SED options) Specifications SATA Models SAS Models Model Number WUH721816ALE6Lz WUH721816AL52z Configuration Interface SATA 6Gb/s SAS 12Gb/s Capacity 18/16TB - Format : Sector size (bytes) 4Kn: 4096 512e: 512 4Kn: 4096, 4160, 4224 512e: 512, 520, 528 Areal Density (Gbits/sq. in, max) 1022 (18TB), 918 (16TB) Performance Data buffer4 (MB) 512 - Rotational speed (RPM) 7200 - Latency average (ms) 4.16 - Interface transfer rate (MB/s, max) 600 1200 Sustained transfer rate (MiB/s, max) 257 (18TB), 250 (16TB) - Reliability Error rate (non-recoverable bits read) 1 in 10 - Load/Unload cycles (at 40°C) 600,000 - Availability (hrs/day x days/wk) 24 x 7 - MTBF2 (M hours, projected) 2.5 - Annualized Failure Rate (AFR, projected) 0.35% - Workloads Up to 550 TB/year - Limited warranty (yrs) 5 - Acoustics Idle/Operating (Bels, typical) 2.0/3.6 - Power Requirement +5 VDC, +12VDC - Operating6 (W) 6.5 8.8 Idle (W) 5.6 5.8 Power consumption efficiency at idle (W/TB) 18TB 16TB 0.31 0.35 0.32 0.36 Physical Size z-height (mm) 26.1 - Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 - Weight (g, max) 690 - Environmental (Operating) Ambient temperature 5° to 60°C - Shock (half-sine wave, 2ms, G) 50 - Vibration (G RMS, 5 to 500Hz) 0.67 (XYZ) - Environmental (Non-operating) Ambient temperature -40° to 70°C - Shock (half-sine wave, 2ms, G) 250 (2ms) - Vibration (G RMS, 2 to 200Hz) 1.04 (XYZ) -

512 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

256 MB Cache, 7200 RPM Enterprise Data Center Grade Drive 5 Years Limited Warranty --WD Ultrastar are Enterprise Server Data Center drives available in both SATA and SAS interface. For Legacy Applications you can order in 512e format as well the 4K native. Various Encryption modes are available too Overview Specifications FAQ Downloads Overview The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard drives. Built using HelioSeal technology, the industrys only fifth-generation helium platform, the DC HC500 series is designed for public and private cloud environments, where storage density, Watts/TB and $/TB are critical for creating the most cost-efficient infrastructure. HelioSeal technology is key to achieving higher drive capacities, greater reliability ratings and extreme power efficiency. The result is a lower Total Cost of Ownership (TCO) for our cloud and enterprise customers. Solves TCO Challanges Highest Capacity 14TB CMR HDD, drop-in ready for capacity-optimized workloads Lowest Power 58% lower idle Watts/TB than 8TB Ultrastar air-filled drives More Reliable Unbeaten MTBF rating for an HDD at 2.5M hours Highlights Up to 14TB capacity in a standard 3.5-inch form factor Conventional Magnetic Recording (CMR) technology works seamlessly in capacity enterprise environments Reliable, field-proven design across five generations HelioSeal design delivers power efficiency (Watts/TB) 2.5M hours MTBF rating and a 5-year limited warranty Applications and Workloads Cloud & Hyperscale Storage Massive Scale-Out (MSO), high-density data centers Distributed File Systems Bulk storage using Object storage solutions like Ceph and OpenStack Swift Primary and secondary storage for Apache Hadoop for Big Data Analytics Surveillance Analytics Specifications Model # *Vary as per Specifications Capacity Interface RPM Class Series Platform Format Encryption Cache WUH721414ALE6L,WUH721414AL52L 14TB SATA 6Gb and SAS 12Gb 7200 rpm HC530 Helium 4Kn,512e SED,SE,SED/FIPS 512MB HUH721212ALE60,HUH721212AL420 12TB SATA 6Gb and SAS 12Gb 7200 rpm HC520 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB HUH721010ALE60,HUH721010AL520 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC510 Helium 4Kn,512e Instant Secure Erase,SED,SE,TCG/FIPS 256MB WUS721010ALE6L4,WUS721010ALE6L1,WUS721010AL5201,WUS721010AL5204,WUS721010AL5205 10TB SATA 6Gb and SAS 12Gb 7200 rpm HC330 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS728T8TALE6L4, HUS728T8TALE6L1, HUS728T8TAL5204, HUS728T8TAL5201, HUS728T8TAL5205 8TB SATA 6Gb and SAS 12Gb 7200 rpm HC320 AIR 4Kn,512e SED,BASE,SED-FIPS 256MB HUS726T6TALE6,HUS726T6TAL52 6TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB HUS726T4TALS2, HUS726T4TAL52 4TB SATA 6Gb and SAS 12Gb 7200 rpm HC310 AIR 512n, 512e SED,BASE,SED-FIPS 256MB 1W10002 HUS722T2TALA604 2TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB 1W10001 HUS722T1TALA604 1TB SATA 6Gb and SAS 12Gb 7200 rpm HA210 AIR 512n SE 128MB FAQ What is the Highest Capacity of WD Ultrastar Drive available ? As in 2019 , 14TB is the highest capacity available. 18TB has been Announced already and will be available by Q1 2020. Can I use a WD Ultrastar Drive in Servers, NAS and Surveillance ? Yes, these are the highest grade Data center drives and can be used anywhere. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What interface are WD ultrastar Available ? WD Ultrstar is available in SATA and SAS. Are there 4K native drives in Ultrastar ? Yes, you can order 512e or 4K native drives in both SATA and SAS. What are the encryptions available on WD Ultrastar Drives ? You can have TCG encryption, Secure Erase or TCG encryption with FIPS in SAS drives. Our price list doesn't have all the models, but ask us for what your requirement is and we will be able to offer an appropriate drive. How do you read the part numbers of WD Ultrastar? what does E6,52 signify Lets break down a part number to easily understand WUH721414AL4205 WU = Western Digital Ultrastar H= Helim ( S = Standard) All the drives from 1 to 8 tb ( and new 10TB AIR) have S. 12,14 TB have H to denote helium platform 72= 7200 RPM 1414 = 14TB full capacity , 14TB capacity of this model. ( 1412 would mean 14 full capacity and 12tb capacity of this model) AL = generation, height 42= interface. (52 = 512e SAS, E6= 512e SATA, N6= 4kn SATA, 42 = 4Kn SAS) 0 = power Diable 5 = Encryption ( 1 = TCG, 4 = Secure Erase, 5 = TCG/FIPS) What is the relation between WD ultrastar and HGST/Hitachi Ultrastar WD Acquired HGST( Hitachi Global Data Systems) Ultrastar in 2012. All the Ultrastar Drives are now sold as WD ultrastar instead of HGST Ultrastar. What is the difference between WD Gold and WD Ultrastar drives, they are both Enterprise drives. WD Gold is Enterprise Class but geared towards the channel sales. For large project and implementations, Ultrastar is more suitable becuase of following reasons 1. Ultrastar Is Available in SAS and SATA. Gold is available only in SATA 2. Ultastar can be ordred in 512e, 512n ( in lower caps) and 4Kn . Gold format is fixed and can't be changed ( 512n/512e) 3. Ultrastar Can be had in TCG, SE, FIPS encryptions unlike Gold. Downloads Download WD ULTRASTAR Brochure

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 512 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 512 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 512 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 256 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 256 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 256 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 256 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty --WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording. MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 256 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty -- WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA   Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

WD Gold Drives are Highest grade SATA drives ( built on Ultrastar platform) with 5 years limited warranty, 7200 RPM and CMR recording.  MTBF is the highest on Gold drives, being enterprise grade drives. --dcsplit-- 128 MB Cache, 7200 RPM Enterprise Data Center Grade 5 Years Limited Warranty -- WD Gold Enterprise SATA Hard drives are Data Center grade drives, with 5 years Limited Warranty. They can used in Demanding Enterprise applications, data centers and Massive NAS and Surveillance Applications Overview Specifications FAQ Downloads Overview WD Gold Enterprise Class SATA HDD Enterprise-class performance and exceptional reliability are in its DNA   Conquer tough workloads with enterprise-class WD Gold HDDs Available in 1TB to 14TB capacities, the WD Gold is a highly reliable solution for demanding storage environments and provides up to 2.5M hours MTBF, vibration protection technology and a low power draw thanks to HelioSeal technology [for 12TB and above]. Specifically designed for use in enterprise-class storage systems and data centers, the WD Gold Enterprise Class SATA HDD delivers the world-class performance you expect from Western Digital hard drives. Compatible Enterprise-Class Storage Reliability Enhanced reliability with up to 2.5M hours MTBF High Workload Take on workloads at up to 10 times the typical desktop rating Vibration Protection Vibration protection technology gives you peace of mind Highlights Specifically designed for use in enterprise-class storage systems and datacenters Improve performance with our vibration protection technology Get peace of mind with a 5-year limited warranty Applications and Workload Take on tough workloads; up to 10 times the typical desktop rating Enhanced reliability you can trust with up to 2.5M hours MTBF HelioSeal technology delivers high capacities with a low power draw [12TB and above] Specifications Model # Capacity Interface RPM Class Cache WD141KRYZ 14TB SATA 6Gb s 7200 512MB WD121KRYZ 12TB SATA 6Gb s 7200 256MB WD102KRYZ 10TB SATA 6Gb s 7200 256MB WD8004FRYZ 8TB SATA 6Gb s 7200 256MB WD6003FRYZ 6TB SATA 6Gb s 7200 256MB WD4003FRYZ 4TB SATA 6Gb s 7200 256MB WD2005FBYZ 2TB SATA 6Gb s 7200 128MB WD1005FBYZ 1TB SATA 6Gb s 7200 128MB Downloads Download WD GOLD ENTERPRISE grade SATA Hard Drive Data Sheet FAQ What is the Highest Capacity of WD GOLD Enterprise Drives available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops, Surveillance and NAS ? Yes, these are the higest grade drives with 5 years limited warranty. You can use them anywhere you use a SATA III drive. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 5 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Gold Enterprise Drives All the WD Gold drives spin at 7200 RPM How much Cache in MB do WD Gold Enterprise Drives have ? 1,2TB have 128MB Cahce. 4 to 12TB have 256MB Cache and 14TB has 512MB Cache

256 MB cache, 5400 RPM Surveillance Grade Drives 3 Years Limited Warranty --WD Purple Surveillance Grade Hard drives are most suitable for Smart Audio Visual Soltions like Video Storage, Streaming, Surveillance Footage Storage and Retreival . Overview Specifications FAQ Downloads Overview SUPERIOR STORAGE. SUPERIOR SURVEILLANCE. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 HD cameras, WD Purple drives are optimized for surveillance systems, that can take the extreme demands of high temperature, 24/7 surveillance systems. BUILT FOR 24/7 SURVEILLANCE WD Purple surveillance hard drives are designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. SEAMLESS INTEGRATION With a wide range of industry-leading enclosures and chipsets supported, you're sure to find the configuration and compatibility that's right for your DVR and NVR. LESS IS MORE Low power consumption is a must in a high-temperature, always-on surveillance environment. IntelliSeek technology reduces damaging ambient noise and vibrations. Specifications Model # Capacity Interface RPM Class Cache WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB WD60PURZ 6TB SATA 6Gb s 5400 rpm 64MB WD40PURZ 4TB SATA 6Gb s 5400 rpm 64MB WD30PURZ 3TB SATA 6Gb s 5400 rpm 64MB WD20PURZ 2TB SATA 6Gb s 5400 rpm 64MB WD10PURZ 1TB SATA 6Gb s 5400 rpm 64MB FAQ What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. However they are purpose built for Surveillance/Video and best fit with such applications. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Purple drives 1TB to 6TB drives spin at 5400RPM. 8TB+ Drives Spin at 7200 RPM How much Cache in MB do WD Purple Drives have ? From 1 to 6 TB , there is 64MB cache. 8-12TB has 256MB , and 14T has 512MB Cache. What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD Purple Surveillance Video Hard Drive Data Sheet

64 MB cache, 5400 RPM Surveillance Grade Drives 3 Years Limited Warranty --WD Purple Surveillance Grade Hard drives are most suitable for Smart Audio Visual Soltions like Video Storage, Streaming, Surveillance Footage Storage and Retreival . Overview Specifications FAQ Downloads Overview SUPERIOR STORAGE. SUPERIOR SURVEILLANCE. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 HD cameras, WD Purple drives are optimized for surveillance systems, that can take the extreme demands of high temperature, 24/7 surveillance systems. BUILT FOR 24/7 SURVEILLANCE WD Purple surveillance hard drives are designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. SEAMLESS INTEGRATION With a wide range of industry-leading enclosures and chipsets supported, you're sure to find the configuration and compatibility that's right for your DVR and NVR. LESS IS MORE Low power consumption is a must in a high-temperature, always-on surveillance environment. IntelliSeek technology reduces damaging ambient noise and vibrations. Specifications Model # Capacity Interface RPM Class Cache WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB WD60PURZ 6TB SATA 6Gb s 5400 rpm 64MB WD40PURZ 4TB SATA 6Gb s 5400 rpm 64MB WD30PURZ 3TB SATA 6Gb s 5400 rpm 64MB WD20PURZ 2TB SATA 6Gb s 5400 rpm 64MB WD10PURZ 1TB SATA 6Gb s 5400 rpm 64MB FAQ What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. However they are purpose built for Surveillance/Video and best fit with such applications. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Purple drives 1TB to 6TB drives spin at 5400RPM. 8TB+ Drives Spin at 7200 RPM How much Cache in MB do WD Purple Drives have ? From 1 to 6 TB , there is 64MB cache. 8-12TB has 256MB , and 14T has 512MB Cache. What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD Purple Surveillance Video Hard Drive Data Sheet

64 MB cache, 5400 RPM Surveillance Grade Drives 3 Years Limited Warranty --WD Purple Surveillance Grade Hard drives are most suitable for Smart Audio Visual Soltions like Video Storage, Streaming, Surveillance Footage Storage and Retreival . Overview Specifications FAQ Downloads Overview SUPERIOR STORAGE. SUPERIOR SURVEILLANCE. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 HD cameras, WD Purple drives are optimized for surveillance systems, that can take the extreme demands of high temperature, 24/7 surveillance systems. BUILT FOR 24/7 SURVEILLANCE WD Purple surveillance hard drives are designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. SEAMLESS INTEGRATION With a wide range of industry-leading enclosures and chipsets supported, you're sure to find the configuration and compatibility that's right for your DVR and NVR. LESS IS MORE Low power consumption is a must in a high-temperature, always-on surveillance environment. IntelliSeek technology reduces damaging ambient noise and vibrations. Specifications Model # Capacity Interface RPM Class Cache WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB WD60PURZ 6TB SATA 6Gb s 5400 rpm 64MB WD40PURZ 4TB SATA 6Gb s 5400 rpm 64MB WD30PURZ 3TB SATA 6Gb s 5400 rpm 64MB WD20PURZ 2TB SATA 6Gb s 5400 rpm 64MB WD10PURZ 1TB SATA 6Gb s 5400 rpm 64MB FAQ What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. However they are purpose built for Surveillance/Video and best fit with such applications. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Purple drives 1TB to 6TB drives spin at 5400RPM. 8TB+ Drives Spin at 7200 RPM How much Cache in MB do WD Purple Drives have ? From 1 to 6 TB , there is 64MB cache. 8-12TB has 256MB , and 14T has 512MB Cache. What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD Purple Surveillance Video Hard Drive Data Sheet

64 MB cache, 5400 RPM Surveillance Grade Drives 3 Years Limited Warranty --WD Purple Surveillance Grade Hard drives are most suitable for Smart Audio Visual Soltions like Video Storage, Streaming, Surveillance Footage Storage and Retreival . Overview Specifications FAQ Downloads Overview SUPERIOR STORAGE. SUPERIOR SURVEILLANCE. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 HD cameras, WD Purple drives are optimized for surveillance systems, that can take the extreme demands of high temperature, 24/7 surveillance systems. BUILT FOR 24/7 SURVEILLANCE WD Purple surveillance hard drives are designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. SEAMLESS INTEGRATION With a wide range of industry-leading enclosures and chipsets supported, you're sure to find the configuration and compatibility that's right for your DVR and NVR. LESS IS MORE Low power consumption is a must in a high-temperature, always-on surveillance environment. IntelliSeek technology reduces damaging ambient noise and vibrations. Specifications Model # Capacity Interface RPM Class Cache WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB WD60PURZ 6TB SATA 6Gb s 5400 rpm 64MB WD40PURZ 4TB SATA 6Gb s 5400 rpm 64MB WD30PURZ 3TB SATA 6Gb s 5400 rpm 64MB WD20PURZ 2TB SATA 6Gb s 5400 rpm 64MB WD10PURZ 1TB SATA 6Gb s 5400 rpm 64MB FAQ What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. However they are purpose built for Surveillance/Video and best fit with such applications. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Purple drives 1TB to 6TB drives spin at 5400RPM. 8TB+ Drives Spin at 7200 RPM How much Cache in MB do WD Purple Drives have ? From 1 to 6 TB , there is 64MB cache. 8-12TB has 256MB , and 14T has 512MB Cache. What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD Purple Surveillance Video Hard Drive Data Sheet

64 MB cache, 5400 RPM Surveillance Grade Drives 3 Years Limited Warranty --WD Purple Surveillance Grade Hard drives are most suitable for Smart Audio Visual Soltions like Video Storage, Streaming, Surveillance Footage Storage and Retreival . Overview Specifications FAQ Downloads Overview SUPERIOR STORAGE. SUPERIOR SURVEILLANCE. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 HD cameras, WD Purple drives are optimized for surveillance systems, that can take the extreme demands of high temperature, 24/7 surveillance systems. BUILT FOR 24/7 SURVEILLANCE WD Purple surveillance hard drives are designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. SEAMLESS INTEGRATION With a wide range of industry-leading enclosures and chipsets supported, you're sure to find the configuration and compatibility that's right for your DVR and NVR. LESS IS MORE Low power consumption is a must in a high-temperature, always-on surveillance environment. IntelliSeek technology reduces damaging ambient noise and vibrations. Specifications Model # Capacity Interface RPM Class Cache WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB WD60PURZ 6TB SATA 6Gb s 5400 rpm 64MB WD40PURZ 4TB SATA 6Gb s 5400 rpm 64MB WD30PURZ 3TB SATA 6Gb s 5400 rpm 64MB WD20PURZ 2TB SATA 6Gb s 5400 rpm 64MB WD10PURZ 1TB SATA 6Gb s 5400 rpm 64MB FAQ What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. However they are purpose built for Surveillance/Video and best fit with such applications. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Purple drives 1TB to 6TB drives spin at 5400RPM. 8TB+ Drives Spin at 7200 RPM How much Cache in MB do WD Purple Drives have ? From 1 to 6 TB , there is 64MB cache. 8-12TB has 256MB , and 14T has 512MB Cache. What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD Purple Surveillance Video Hard Drive Data Sheet

1TB-10TB Surveillance Grade Drives 3 Years Limited Warranty --WD Purple Surveillance Grade Hard drives are most suitable for Smart Audio Visual Soltions like Video Storage, Streaming, Surveillance Footage Storage and Retreival . Overview Specifications FAQ Downloads Overview SUPERIOR STORAGE. SUPERIOR SURVEILLANCE. Built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 HD cameras, WD Purple drives are optimized for surveillance systems, that can take the extreme demands of high temperature, 24/7 surveillance systems. BUILT FOR 24/7 SURVEILLANCE WD Purple surveillance hard drives are designed for high temperature, always-on, surveillance security systems to ensure reliability and quality video play back when you need it most. SEAMLESS INTEGRATION With a wide range of industry-leading enclosures and chipsets supported, you're sure to find the configuration and compatibility that's right for your DVR and NVR. LESS IS MORE Low power consumption is a must in a high-temperature, always-on surveillance environment. IntelliSeek technology reduces damaging ambient noise and vibrations. Specifications Model # Capacity Interface RPM Class Cache WD121PURZ 12TB SATA 6Gb s 7200 rpm 256MB WD100PURZ 10TB SATA 6Gb s 5400 rpm 256MB WD81PURZ 8TB SATA 6Gb s 5400 rpm 256MB WD60PURZ 6TB SATA 6Gb s 5400 rpm 64MB WD40PURZ 4TB SATA 6Gb s 5400 rpm 64MB WD30PURZ 3TB SATA 6Gb s 5400 rpm 64MB WD20PURZ 2TB SATA 6Gb s 5400 rpm 64MB WD10PURZ 1TB SATA 6Gb s 5400 rpm 64MB FAQ What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Can I use a WD Purple drive in Desktops and servers ? These are SATA III drives and can be used anywhere you can use a SATA drive. However they are purpose built for Surveillance/Video and best fit with such applications. For Servers you should use Enterprise Grade Ultrastar Drives. What is the meaning of Limited Warranty ? Limited warranty means that each passing year, you got partial value of your drives back. If its 3 years limited warranty, you get full replacement in first year, 75% value in second year and 50% Value in the third year. What is the RPM on WD Purple drives 1TB to 6TB drives spin at 5400RPM. 8TB+ Drives Spin at 7200 RPM How much Cache in MB do WD Purple Drives have ? From 1 to 6 TB , there is 64MB cache. 8-12TB has 256MB , and 14T has 512MB Cache. What is the Highest Capacity of WD Purple Drive available ? As in 2019 , 14TB is the highest capacity available. Downloads Download WD Purple Surveillance Video Hard Drive Data Sheet