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Silver 3.5 inch internal hard drive with label showing WD Gold 12TB

Western Digital

Western Digital WD122KRYZ 12TB 7200 RPM 512MB SATA 3.5" internal hard drive

SKU CH-3C6X-JAMTD MPN WD122KRYZ

Enterprise-class 12 TB SATA hard drive with 7200 RPM, 512 MB cache and 2.5 M hours MTBF for 550 TB yearly workloads

  • Total capacity12 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory512 MB
  • Key featuresBuilt For Demanding Use Cases Customize your business’s stor

Capacity 12TB

  • Enterprise-grade reliability with 2.5M hours MTBF
  • Handles heavy workloads rated at 550TB per year
  • Fast 7200 RPM performance with 512MB cache
  • Massive 12TB capacity for demanding storage needs
  • SATA 6.0Gb/s interface fits standard enterprise systems

Enterprise Storage Drive

The Western Digital WD122KRYZ is a 12TB 3.5-inch internal hard drive built for enterprise storage systems and data centres. It operates at 7200 RPM with a SATA 6.0Gb/s interface and a 512MB cache to handle demanding read-write workloads. The Gold series design targets high uptime environments such as RAID, erasure coding or JBOD arrays.

Suited For Continuous Workloads

This drive suits organisations that need large-capacity, high-reliability storage for servers and multi-bay enclosures running 24/7. It is rated for 550TB per year workloads and up to 2.5M hours MTBF. Buyers who want more storage capacity or a different interface should look at other models in the range.

Sustained Load Behaviour

Under sustained load the drive maintains its enterprise-class workload rating of 550TB per year without throttling. The 512MB cache helps smooth heavy sequential and random I/O streams typical of database and virtualisation tasks. Vibration protection and rotational vibration safeguards keep performance consistent in densely populated chassis.

How it compares

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

Price $472.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 12 TB
Higher than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $39.42 per TB
Cheaper than about 70% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineGold
Model nameWD122KRYZ
Total capacity12 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)
Shipping weight0.84 kg
Package size203 × 127 × 76 mm

Other versions of this model

5 more in the same range

Questions about this item

What SATA interface and power connections does my motherboard or controller need to run this 12TB WD Gold drive?

The drive uses a SATA 6.0Gb/s interface and standard SATA power and data connectors, so any motherboard or RAID controller with a free SATA port can run it.

Can this 7200 RPM enterprise drive share a SATA controller or backplane with older desktop drives that run at lower speeds?

Yes — each SATA port negotiates its own link speed, so this 7200 RPM drive will operate at 6.0Gb/s while slower drives on the same controller run at their own rates.

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

Check the drive model and firmware in BIOS or with a tool such as CrystalDiskInfo; it will report WD122KRYZ, 7200 RPM and 512MB cache if the drive is operating as specified.

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