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Silver 3.5-inch hard drive with circuit board visible

Western Digital

Western Digital Ultrastar DC HC590 26TB 3.5" SATA 512MB cache 7200rpm 0F65672

SKU CH-ZBGA-ZT7CZ

26 TB 3.5" SATA hard drive with 7200 RPM, 512 MB cache and CMR technology for 550 TB yearly workloads

  • Total capacity26 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory512 MB
  • Recording methodCMR
  • 26TB capacity from 11-disk platform
  • 7200rpm CMR sustains 550TB yearly workload
  • 512MB cache accelerates data access
  • 5M hours MTBF ensures reliability
  • Hot-swappable 3.5" SATA 6.0Gb/s design

Capacity and workload fit

The Western Digital Ultrastar DC HC590 delivers 26TB on a 3.5-inch SATA 6.0Gb/s interface. Its CMR recording method and 512MB cache suit servers and storage arrays that need sustained write throughput. The drive is rated for 550TB per year and a 2.5M-hour MTBF, targeting workloads that exceed typical desktop limits.

Build and mounting

An 11-disk helium platform keeps the 26TB capacity inside the standard 3.5-inch footprint. Hot-swap support means the drive can be inserted or removed from compatible backplanes without powering down the enclosure. The SATA 6.0Gb/s connector follows the familiar data and power pinout used in rackmount chassis and external drive bays.

Included extras

Retail or OEM packaging may vary, so the box contents are not guaranteed beyond the drive itself. No additional cables, mounting rails or management software are specified by the manufacturer. Buyers should verify accessory requirements with their enclosure or controller vendor 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 $774.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 26 TB
Higher than about 97% of the 2,372 comparable items (median 2 TB).
Price per TB $29.81 per TB
Cheaper than about 83% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineUltrastar DC HC590
Model nameWUH722626ALE6L4
Part number0F65672
Total capacity26 TB
Performance
Rotational speed7,200 RPM
Storage
Cache memory512 MB
Recording methodCMR
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

What practical throughput does the SATA 6.0Gb/s interface limit this 26TB drive to?

The SATA 6.0Gb/s link caps sustained transfers at roughly 600 MB/s, so the 7200 rpm 26TB drive will hit that ceiling on sequential reads and writes.

What physical clearance does the 3.5-inch 11-disk HC590 need in a server chassis?

The 3.5-inch form factor with 11 internal disks fits standard 3.5-inch hot-swap bays; ensure the chassis supports 26TB CMR drives and provides adequate airflow for 550 TB/year workloads.

How is the 0F65672 installed in a hot-swap bay, and what step is often missed?

Slide the drive into the bay until the SATA connector seats firmly, then secure the latch; the step often missed is verifying the carrier key aligns so the drive reports 26TB to the controller.

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