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WD Ultrastar DC HC560 WUH722020BL5204 20 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)

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Reimagining the HDD for Exponential Data Growth
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. IDC projects that in 2025, HDDs will represent 82% of storage capacity sold to the enterprise market. 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 the company's leading NAND flash with its 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), resulting in 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.
  • Delivers increased storage capacity with maximum performance, giving you the space you need without compromising speed
  • Easily access and retrieve files frequently, making the process convenient
  • With 20 TB capacity, you have ample space to store a vast number of images, extensive hours of video, or a large collection of songs
  • 12Gb/s SAS interface ensures high speed and reliability, providing fast and dependable data transfer
  • 3.5" form factor ensures consistent performance, making it ideal for users who need dependable storage solutions in demanding environments
Brand
Brand Western Digital Corporation
Storage
Storage Capacity 20 TB
Drive Type Internal
Drive Interface SAS
Drive Interface Standard 12Gb/s SAS
Spindle Speed (rpm) 7200
Random 4KB Read 212IOPS
Random 4KB Write 565IOPS
Disk Format 4Kn
Networking & Connectivity
Wireless LAN No
Size / Dimensions
Form Factor 3.5"
General Features
Manufacturer Western Digital Corporation
Miscellaneous
Product Name Ultrastar DC HC560 WUH722020BL5204 Hard Drive
WD Ultrastar DC HC560 WUH722020BL5204 20 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS) - 7200rpm - 4Kn Format - 5 Year Warranty