22TB WD ULTRASTAR DH HC570 7200RPM 512MB

Best-in-class performance - 2.5x faster random writes than previous generation 10k drives
Best-in-class capacity - Advanced Format models deliver up to 1.8TB
Enterprise-class protection - Multiple security and data encryption options

HGST delivers best-in-class performance and capacity in a small form factor drive. The Ultrastar® C10K1800 is an enterprise-class 10k RPM hard drive that stores up to 1.8TB of data, has 50% more capacity than previous generations, and has best-in-class active and idle power efficiency, giving data centers the... next generation can keep up with the growth of digital data and reduce space requirements and power consumption. Data center architects can also take advantage of the C10K1800's best-in-class performance for demanding 24/7 workloads, with up to 2.5x faster random write performance and 23% faster sequential performance over previous generations of 2.5-inch SFF drives achieve with 10k rpm. Best-in-class performance is backed by multiple HGST technology innovations including media cache architecture, the fast 12Gb/s SAS interface and 'Advanced Sector Format'. HGST's media cache architecture is a disk-based caching technology that provides large non-volatile cache memory on the media. This results in improved reliability and data integrity in the event of an unexpected power loss, as well as a significant improvement in write performance compared to solutions using limited or NAND flash-based NVC, even under heavy workloads. The C10K1800 is the industry's first 10K rpm hard drive that uses an industry-leading 12Gb/s SAS interface to enable the highest transfer rates between host and drive. The Advanced Format models enable the industry's highest 10k RPM capacity at 1.8TB with 4K native and 512 emulation to support new systems. They also offer 512 native format models that support legacy systems.