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Silver 3.5-inch internal hard drive with silver label showing WD Gold 22TB model number

Western Digital

Western Digital WD221KRYZ 22TB 3.5" 7200 RPM 512MB SATA internal hard drive

SKU CH-7VVT-9KSCR MPN WD221KRYZ

A 22 TB enterprise-class SATA hard drive with 7200 RPM speed and 512 MB cache for high-capacity storage systems

  • Total capacity22 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory512 MB
  • Max height26.1 mm

Capacity 22TB

  • 22 TB capacity for massive enterprise datasets
  • 7200 RPM spindle speed for responsive data access
  • 512 MB cache to accelerate read and write operations
  • 5 million hours MTBF rating for dependable long-term operation
  • SATA 6.0 Gb/s interface for broad system compatibility

Enterprise 22TB SATA HDD

The Western Digital WD221KRYZ is a 22TB 3.5" internal hard drive built for enterprise storage systems and data centres. It spins at 7200 RPM with a 512MB cache and connects through a SATA 6.0Gb/s interface. The drive is rated for up to 2.5M hours MTBF and carries a 5-year limited warranty.

Suited for high-capacity arrays.

This drive fits servers, NAS appliances and RAID arrays that need maximum areal density and sustained write performance. It is not designed for laptop bays, external enclosures or as a primary operating-system drive in a workstation. Buyers who need a smaller physical format or a different interface should consider other options.

22TB capacity on SATA 6.0Gb/s

The single specification that determines fit is the 22TB capacity delivered over a SATA 6.0Gb/s connection. Verify that your controller, backplane and operating system support volumes of this size before installation.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $845.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 22 TB
Higher than about 95% of the 2,372 comparable items (median 2 TB).
Price per TB $38.45 per TB
Cheaper than about 72% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineGold
Model nameWD221KRYZ
Total capacity22 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Cache memory512 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.91 kg
Package size178 × 127 × 51 mm

Other versions of this model

5 more in the same range

Questions about this item

What motherboard interface is required for the WD221KRYZ to operate?

The drive connects through a SATA 6.0Gb/s port on the motherboard or host controller.

Will the 26.10 mm height of this 3.5" drive fit in my existing drive bay?

Standard 3.5" bays accept the 26.10 mm height, 101.60 mm width and 147.00 mm length of this model.

How can I confirm the 7200 RPM spindle speed and 512MB cache are active after installation?

Check the reported RPM and cache size in the BIOS or a SMART monitoring tool once the drive is recognised.

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