Western Digital unveils 20TB hard drives

Western Digital has unveiled not one but two 20TB hard disk drives (HDDs) with its new Ultrastar DC HC560 and WD Gold HDD.

Both of the company’s new large capacity drives are available in the standard 3.5-inch form factor and feature its proprietary OptiNAND technology. OptiNAND integrates INAND Universal Flash Storage (UFS) Embedded Flash Drive (EFD) with traditional spinning disks which allows a total of 20TB to be packed onto nine platters with each platter containing 2.2TB of storage.

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