DriveStation™ Duo 

Buffalo’s DriveStation™ Duo is a 2-drive, RAID enabled USB 3.0 storage solution ideal for small servers, creative professionals, offices and consumers who need redundant, high-performance external storage.



DriveStation Duo is a high performance, 2-drive desktop storage and backup solution. Equipped with two optimized hard drives, DriveStation Duo features the redundancy and performance required for demanding professional and server applications.


  • High performance NAS hard drives optimized for continuous 24/7/365 operation
  • USB 3.0 offers universal connectivity for PC and Mac® computers
  • Schedule automatic backups for your PC or office server with NovaBACKUP® Buffalo Edition
  • Time Machine® support offers scheduled backups for protecting Mac computers
  • RAID 1 support and hot-swappable hard drives provide comprehensive data protection


DriveStation Duo features two high performance NAS hard drives optimized for continuous 24/7/365 operation with enhanced RAID performance. These cost-effective hard drives run cooler, last longer and reduce meantime between failure.


easy to use storageEASY TO USE STORAGE
With terabytes of storage, DriveStation provides a reliable, easy to use storage solution to quickly expand the capacity of your PC and Mac computers with universal USB 3.0 plug-and-play.


DriveStation Duo is perfect for backing up your important files. Disaster and hard drive failures can occur unexpectedly; don't leave your important files and treasured memories in the hands of chance. DriveStation Duo features eleven licenses of NovaBACKUP Buffalo Edition for Windows® PCs and servers (one server and ten workstations) and Time Machine support for backing up Mac computers.


DriveStation Duo provides users the flexibility to easily maximize capacity or protect their data using RAID redundancy.

  • RAID 0 combines all drives into a single array offering maximum storage capacity with no redundancy.
  • RAID 1 offers maximum redundancy by mirroring both drives. Data is automatically duplicated, so that if one drive fails, the data is kept safe on the other. Buffalo recommends RAID 1 for all devices using two hard drives.


DriveStation Duo's hot swap feature allows a user to replace a hard drive in the event of failure without powering down the device.  Simply remove the defective drive, insert the new drive and the data rebuilds while still being available to clients on the network with zero downtime.


Buffalo Tools is a feature-rich suite of software included with the Buffalo DriveStation Duo. Any or all of the following components of Buffalo Tools may be installed on Windows PCs.

  • Buffalo's Backup Utility is a featured backup software for Windows PCs and can be used to back up one or multiple computers with a single Buffalo external hard drive.
  • eco Manager is an energy efficiency tool used to conserve energy and reduce battery consumption by regulating the power usage of the hard drive, cutting power to the drive during extended periods of inactivity.
  • TurboPC includes two components to enhance file transfer performance with external hard drives. It also includes TurboCopy which provides additional system adjustments to increase performance substantially.


Internal Hard Drives

Number of drives 2
Drive interface SATA 3 Gbps
Hard drive sizes 2 TB, 3 TB, 4 TB
Total capacity 4 TB, 6 TB, 8 TB
Hard drive type NAS
Supported RAID 0/1/JBOD (Individual Disks)

USB Interface

Standards compliance USB 3.0 / USB 2.0
Data transfer rates

5 Gbps* (USB 3.0)
480 Mbps* (USB 2.0)

Connector type Standard B
Number of ports 1

* 480 Mbps and 5 Gbps are the maximum transfer rates derived from the specifications of the Universal Serial Bus 2.0 and 3.0. Actual transfer rates will vary depending upon environmental factors. Data rates, features and performance may vary based on the configuration of your system and other factors.


Dimensions (L x W x H) 8.03 x 3.38 x 5 in
Weight 4.85 lbs
Power consumption Max 48W
Power supply Internal AC 100-240V Universal
50/60 Hz
Client OS support Windows® 10
Windows® 8.1 (32-bit/64-bit)
Windows® 8 (32-bit/64-bit)
Windows® 7 (32-bit/64-bit)
Windows Vista® (32-bit/64-bit)
Windows® XP
Windows® Server 2008 (32-bit/64-bit)
Windows® Server 2008 R2 (64-bit)
Mac OS® X 10.6 or later*
Box contents DriveStation Duo
Setup CD-ROM
Quick Setup Guide
USB 3.0 Cable
AC Adapter
Warranty Statement
Software License - Windows® SecureLock
- NovaStor NovaBackup

*Some included optional utilities are not supported.




    File Size Post Date Version OS Support Notes
2016-25-04 1.10 Windows Firmware update for the HD-WLU3 and HD-WHU3
2016-25-04 1.10 Mac Firmware update for HD-WLU3 and HD-WHU3


    File Size Post Date Version OS Support Notes
2016-05-05 Quick Setup Guide and User's Manuals for DriveStation Duo HD-WHU3
2016-25-04 1.10 Windows Readme for firmware update
2016-25-04 1.10 Mac Readme for firmware update
0.605 KB 2016-25-04 1.35 Windows TurboPC EX Readme


    File Size Post Date Version OS Support Notes
12.15 MB 2016-25-04 1.35 Windows TurboPC EX
2016-25-04 1.00 DriveStation CD for HD-WHU3 and HD-QHU3. Includes RAID utility for Windows/Mac and NovaStor NovaBACKUP for Windows.
2020-02-06 4.12.86 Windows RAID Utility for DriveStation Duo and Quad for x64 Windows
2020-02-06 2.02 Mac OS RAID Utility for Mac for DriveStation Duo x64


DriveStation™ Duo 4 TB

  • - 4

DriveStation™ Duo 8 TB

  • - 8

DriveStation™ Duo 6 TB

  • - 6

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