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Black rectangular desktop enclosure housing two internal drives

Buffalo Technology

Buffalo Technology HD-WH8TU3R1 8TB external hard drive

SKU CH-30SY-8JKY2 MPN HD-WH8TU3R1

Two 4 TB NAS drives in a RAID array with USB 3.0 connectivity and automatic backup software for continuous operation

  • Total capacity8 TB (2 × 4 TB)
  • Interface typeUSB 3.0
  • Supported RAID modesSystem (0, 1)
  • Product colorBlack
  • Key featuresNumber of Drives: 2 Drive Interface SATA II: 3Gb/s Data Tran
  • Product weight6.75

Capacity 8TB

Model HD-WH8TU3R1

  • Designed for continuous 24/7/365 operation with NAS-grade drives
  • RAID 1 mirroring and hot-swap bays protect data against drive failure
  • USB 3.0 interface delivers up to 5 Gb/s transfer speeds
  • Includes NovaBACKUP Buffalo Edition for scheduled PC and server backups
  • Native Time Machine support enables automated Mac backups

Desktop RAID array for continuous operation

The Buffalo DriveStation Duo pairs two 4 TB NAS-grade drives in a single enclosure, delivering 8 TB of storage designed for 24/7/365 operation. It targets creative professionals and small offices that need a reliable external target for large project files and scheduled backups.

Upgrade from single-drive USB storage

Moving from a single external drive to this dual-drive RAID array adds hardware RAID 0 for speed or RAID 1 for mirroring, plus hot-swappable bays that let you replace a drive without powering down. The jump is worth it when uptime and data protection matter more than raw capacity alone.

USB 3.0 connection with included backup software

The unit connects via USB 3.0 at up to 5 Gb/s and falls back to USB 2.0 at 480 Mb/s, working with both PC and Mac without extra drivers. NovaBACKUP Buffalo Edition handles scheduled PC backups, while Time Machine support covers macOS, freeing you from manual copy routines.

How it compares

Measured against everything we stock in High-Capacity External Drives, at today’s prices. Recalculated every night.

Price $292.99
Cheaper than about 60% of the 144 comparable items (median $379.99).
Total capacity 8 TB (2 × 4 TB)
Lower than about 60% of the 101 comparable items (median 12 TB).
Price per TB $36.62 per TB
Typical for this category: the median of 101 items is $37.00 per TB.

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Specifications

Product
Brand nameBUFFALO
Product lineDriveStation Duo
Model nameHD-WH8TU3R1
Total capacity8 TB (2 × 4 TB)
Product colorBlack
Storage
Supported RAID modesSystem (0, 1)
Ports & slots
Interface typeUSB 3.0
Size & build
Shipping weight3.36 kg
Package size381 × 267 × 210 mm
In the box
In the boxDriveStation Duo USB 3.0 Hard Drive Array, Setup CD-ROM, Quick Setup Guide, USB 3.0 cable, AC Adapter, Warranty Statement

Other versions of this model

1 more in the same range

Questions about this item

What desk space and power does the 6.75 kg DriveStation Duo need?

The unit weighs 6.75 kg and requires its included AC adapter for power; allow room for the drive enclosure and the external power brick on a stable surface.

How do I set the RAID mode on the two 4 TB drives, and what step is often missed?

Use the hardware switch on the rear to choose RAID 0 or RAID 1 before powering on; the step often missed is setting the switch while the unit is off, then rebooting so the array initialises correctly.

When should I expect to replace the NAS-grade drives inside the 8 TB array?

The drives are rated for continuous 24/7/365 operation; plan replacement when SMART attributes show wear or after the manufacturer’s rated workload limit is reached.

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