WD Ultrastar 20TB 3.5-inch Enterprise Hard Drive HOST MANAGED SMR Sata HDD WSH722020ALE604. Please note: this is not a regular drive. It is a specialized Host Managed SMR hard drive. There are very few OS and controllers that will support this drive. If you are not familiar with Host Managed SMR technology, please do not bid. It will not work in your system. Built with industry-leading 9-disk HelioSeal technology for unparalleled capacity in data-intensive applications. 7200 RPM rotational speed, 512MB cache, and Sata 6Gb/s interface ensure fast and consistent data transfer. 2.5 million hours MTBF (Mean Time Between Failures) with support for 24/7 operation. HelioSeal technology minimizes power consumption while maintaining high performance. Features TLER (Time-Limited Error Recovery), Rai.
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