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Standard 3.5-inch silver internal hard drive with SATA connectors

Buffalo Technology

Buffalo Technology OP-HD4.0WH 4TB SATA 3.0Gb/s internal hard drive

SKU CH-6790-E5KQ2 MPN OP-HD4.0WH

4 TB SATA 3.0 Gb/s desktop hard drive for storage upgrades or DriveStation Duo Gen2 replacement

  • InterfaceSATA 3.0Gb/s
  • Capacity4TB
  • 4TB capacity stores large media libraries and backups
  • SATA 3.0Gb/s interface connects to standard desktop motherboards
  • Designed as a replacement drive for DriveStation Duo Gen2 enclosures
  • New condition ensures full manufacturer-rated reliability from first use
  • 22-165-885 series identifies the exact drive specification for compatibility

DriveStation Duo Gen2 replacement

This 4 TB Buffalo Technology drive carries the OP-HD4.0WH model code and connects through a SATA 3.0Gb/s interface. It is built as a direct replacement for DriveStation Duo Gen2 units and arrives in retail or OEM packaging that may vary. The drive was first listed by the manufacturer on 30 November 2022.

NAS owners needing a matched spare

The drive suits anyone restoring capacity to a DriveStation Duo Gen2 enclosure without changing firmware or cabling. Builders who need a faster interface, a different physical size, or a drive for a non-Buffalo RAID box should look at something else. The SATA 3.0Gb/s link limits throughput compared with newer SATA revisions.

Standard 3.5 inch SATA installation

Installation follows the usual 3.5 inch SATA process: secure the drive in the bay, attach the data and power cables, then initialise the volume in the host OS. The most common issue is the enclosure failing to recognise the new drive until a RAID rebuild or format is triggered manually. Packaging variations do not affect the fitting procedure.

Highlights

  • 4TB capacity stores large media libraries and backups
  • SATA 3.0Gb/s interface connects to standard desktop motherboards
  • Designed as a replacement drive for DriveStation Duo Gen2 enclosures
  • New condition ensures full manufacturer-rated reliability from first use
  • 22-165-885 series identifies the exact drive specification for compatibility

Specifications

BrandBUFFALO
Series22-165-885
InterfaceSATA 3.0Gb/s
Capacity4TB
Shipping weight0.91 kg
Package size198 × 152 × 51 mm

Questions about this item

Does my desktop need a SATA 3.0Gb/s port to install this 4TB drive?

Yes, the drive connects through a standard SATA 3.0Gb/s interface, so the motherboard or controller must provide a matching SATA data and power connection.

Can I keep my existing SATA 3.0Gb/s cables when fitting this OP-HD4.0WH?

Standard SATA data and power cables work with this drive; no special cable type is required beyond what a typical desktop already uses.

How do I confirm the drive is recognised at its full 4TB capacity after installation?

Check BIOS or the operating system disk utility — both should report the drive as a 4TB SATA device with the model OP-HD4.0WH.

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