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Silver 3.5 inch internal hard drive bare unit with SATA connectors

Western Digital

Western Digital Ultrastar 14TB 7200 RPM SATA 6.0Gb/s 3.5" 512MB Cache 0F31284 internal hard drive

SKU CH-SKZP-TX4RF MPN 0F31284

14 TB enterprise drive rated for 550 TB yearly workloads with 7200 RPM and 512 MB cache

  • Total capacity14 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Flash memory typeHard Drive
  • Recording methodCMR

Capacity 14TB

  • 14TB capacity for massive data storage
  • 550TB annual workload rating for heavy enterprise use
  • 5M hours MTBF for long-term reliability
  • HelioSeal helium technology for power efficiency
  • 512MB cache and 7200 RPM for responsive performance

14 TB SATA enterprise hard drive

The Western Digital Ultrastar 0F31284 is a 14 TB 3.5-inch internal hard drive built for enterprise storage systems. It spins at 7200 RPM with a 512 MB cache and connects via a SATA 6.0 Gb/s interface. The drive uses conventional magnetic recording and HelioSeal technology to deliver high capacity in a standard form factor.

Suited for high-capacity servers and storage arrays

This drive targets environments that demand sustained 24×7×365 operation and a workload rating up to 550 TB per year. Buyers who need a different interface or a smaller physical size should look elsewhere.

550 TB annual workload rating

The 550 TB per year workload rating is the key figure that separates this Ultrastar model from standard desktop drives. It signals the write endurance expected in enterprise deployments.

How it compares

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

Price $286.99
Pricier than about 81% of the 4,938 comparable items (median $107.99).
Total capacity 14 TB
Higher than about 91% of the 2,372 comparable items (median 2 TB).
Price per TB $20.50 per TB
Cheaper than about 92% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineUltrastar DC HC530
Model name0F31284
Total capacity14 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency6Gb/s
Storage
Flash memory typeHard Drive
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 width101.6 mm
Maximum length147 mm
Shipping weight2.22 kg
Package size147 × 89 × 5 mm

Other versions of this model

4 more in the same range

Questions about this item

Does the bare drive come with cables or mounting hardware, or do I need to buy them separately?

The drive is supplied as a bare unit only. SATA data and power cables plus any 3.5-inch mounting screws or trays must be purchased separately.

The specs mention Ultrastar DC HC530 — is that a different capacity or the same 14 TB model?

DC HC530 is the series name for this 14 TB, 7200 RPM, 512 MB cache SATA drive; there is no separate capacity choice under that series in this listing.

What does the 550 TB per year workload rating mean for daily use in a server?

It means the drive is built to handle up to 550 TB of data written or read each year — roughly 1.5 TB per day — far above typical desktop drives.

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