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Silver 3.5 inch SATA hard drive with green circuit board visible

Western Digital

Western Digital WD203KRYZ Gold 20TB 7200 RPM 512MB Cache 3.5" SATA internal hard drive

SKU CH-JW2D-JJ33D MPN WD203KRYZ

A 20 TB enterprise-class 3.5" SATA hard drive spinning at 7200 RPM with 512 MB cache and CMR recording for continuous heavy workloads

  • Total capacity20 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Recording methodCMR
  • Rotational speed7,200 RPM
  • Cache memory512 MB
  • 20 TB capacity stores massive enterprise datasets
  • 7200 RPM and 512 MB cache deliver high throughput
  • CMR recording technology ensures consistent write performance
  • 5 million hours MTBF rating backs long-term reliability
  • 5-year limited warranty protects mission-critical data

20 TB Enterprise Hard Drive

The Western Digital WD203KRYZ Gold is a 3.5 inch internal hard drive built for enterprise storage systems and data centres. It delivers 20 TB of capacity using CMR recording technology at 7200 RPM with a 512 MB cache. The SATA 6.0 Gb/s interface connects to standard desktop and server backplanes. Designed for continuous operation, it carries a 2.5 million hour MTBF rating.

Suits Heavy Workloads Not Portable Builds

This drive suits small and medium businesses, design professionals and IT managers who need high-capacity, high-reliability storage for mission-critical data and creative output. It is engineered for demanding, continuous read-write workloads in commercial environments. Buyers who need a drive for laptop upgrades, external enclosures or low-power silent operation should look elsewhere. The 3.5 inch form factor and enterprise focus make it unsuitable for those mobile or space-constrained scenarios.

SATA 6.0 Gb/s Interface Decides Compatibility

The single specification that determines fit is the SATA 6.0 Gb/s interface. Your system must provide a standard SATA data and power connection for this 3.5 inch drive. Verify that your motherboard, controller or backplane supports SATA 6.0 Gb/s to utilise the full interface bandwidth. Without a compatible SATA port the drive cannot be installed or used.

How it compares

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

Price $763.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 20 TB
Higher than about 94% of the 2,372 comparable items (median 2 TB).
Price per TB $38.20 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 nameWD203KRYZ
Total capacity20 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Recording methodCMR
Cache memory512 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width147 mm
Maximum length101.6 mm
Shipping weight0.77 kg
Package size193 × 130 × 64 mm

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