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Silver 3.5-inch enterprise hard drive with exposed PCB and label showing 20TB capacity

Western Digital

Western Digital 0F38785 Ultrastar DC HC560 20TB 7200 RPM 512MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-QARK-BG7RW MPN 0F38785

A 20TB 3.5-inch enterprise hard drive with 7200 RPM, 512MB cache and SATA 6.0Gb/s interface

  • InterfaceSATA 6.0Gb/s
  • Capacity20TB
  • Recording TechnologyCMR
  • RPM7200 RPM
  • Cache512MB
  • Average Latency4.16ms
  • Massive 20TB capacity stores enterprise datasets
  • 7200 RPM spin speed enables rapid data access
  • 512MB cache buffers heavy I/O workloads
  • CMR recording technology ensures consistent write performance
  • SATA 6.0Gb/s interface integrates with existing servers

Ultrastar DC HC560 20TB Enterprise Drive

The Western Digital Ultrastar DC HC560 0F38785 is a 20TB 3.5" internal hard drive built for enterprise storage workloads. It operates at 7200 RPM with a 512MB cache and uses a SATA 6.0Gb/s interface. Conventional magnetic recording (CMR) technology supports sustained write performance.

Suited for High-Capacity Arrays

This drive suits data centres and servers that need maximum capacity per bay and 7200 RPM throughput for bulk storage, backup targets or nearline archives. It is not for laptops or small-form-factor systems that only accept 2.5" drives, nor for desktop users who need low-noise or low-power operation.

SATA 6.0Gb/s Interface Decides Compatibility

The single specification that decides fit is the SATA 6.0Gb/s interface; the host must provide a standard SATA data and power connection. The 26.10mm height matches the standard 3.5" form factor, so any chassis or backplane designed for 3.5" enterprise drives will accept it.

Points forts

  • Massive 20TB capacity stores enterprise datasets
  • 7200 RPM spin speed enables rapid data access
  • 512MB cache buffers heavy I/O workloads
  • CMR recording technology ensures consistent write performance
  • SATA 6.0Gb/s interface integrates with existing servers

Caractéristiques

BrandWD
SeriesUltrastar DC HC560
Model0F38785
InterfaceSATA 6.0Gb/s
Capacity20TB
Recording TechnologyCMR
RPM7200 RPM
Cache512MB
Average Latency4.16ms
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Poids d’expédition0.68 kg
Dimensions du colis147 × 102 × 26 mm

Questions sur cet article

Does my system need a SATA 6.0Gb/s port and a 3.5" drive bay to install this 20TB Ultrastar HC560?

Yes — the drive uses the SATA 6.0Gb/s interface and the standard 3.5-inch form factor, so the host must provide a matching data port, power connector and a bay that accepts the 26.10mm height.

Can I keep using my existing SATA 3Gb/s controller with this 7200 RPM 512MB cache drive?

The drive is backward compatible with slower SATA speeds; it will operate at the controller's maximum rate while retaining its 7200 RPM spindle speed and 512MB cache.

How do I confirm the 20TB capacity and 4.16ms latency are recognised after installation?

Check the BIOS or operating-system disk utility — it should report the full 20TB capacity and the drive's model 0F38785, while SMART data will show the 4.16ms average latency specification.

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