Western Digital WD Gold Enterprise Class SATA HDD

Brand: Western Digital
Model: WD Gold Enterprise Class SATA HDD
UPC: 0718037891026

$1,083–$1,197estimated range · from catalog price Sep 3, 2026

20TB WD Gold enterprise 3.5-inch SATA HDD (WD201KRYZ): 7200 RPM, 512MB cache, helium CMR with OptiNAND—built for reliable bulk storage and 24/7 arrays.

Storage performance rankTop 63% of storage drives

TierWorkstation?

ReleasedNov 2021

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Capacity20 TB

TypeHDD

InterfaceSATA

Read speed291 MB/s

Form factor3.5

GixCore Editorial

Product overview

Released November 16, 2021, the 20TB WD Gold (WD201KRYZ) arrives with Western Digital’s OptiNAND-enabled CMR/ePMR generation in the enterprise Gold family. It’s a 3.5-inch SATA 6 Gb/s, 7200 RPM helium (HelioSeal) drive with a 512MB cache, a 550TB/year workload rating, and a 2.5M‑hour MTBF.Sourcetomshardware.com

Positioned in the workstation/enterprise tier, it exists to provide reliable, very high‑capacity bulk storage for 24/7 arrays. It’s well-suited to mass storage, large game libraries, and sequential media or video‑editing scratch where capacity matters more than SSD-class speed. Not discontinued as of July 2026. Unique: OptiNAND offloads metadata to onboard NAND to enable the 20TB density.Sourcewesterndigital.com

Best for

mass storage
game library
video-editing scratch

Official product specifications

Specifications

At a glance iEach dot represents a catalog model. Farther right means a higher measured value, not necessarily a better fit.Measured against the storage drives catalog

Current modelCatalog models

Capacity20 TB