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40TB DriveStation Ultra

Mac / PC / Thunderbolt / USB 3.0 / eSATA
Direct Attached Storage Solution
Blazing Fast Large Capacity Desktop DAS
Ideal for demanding business needs
DriveStation Ultra is a ten–drive, high performance and high capacity direct attached storage solution ideal for businesses that demand fast data transfer speeds for large files, such as high resolution video. Mac users can experience the blazing fast speeds using the Thunderbolt 2 connector, and PC users can also connect through high-speed USB 3.0 and eSATA interfaces.
Unparalleled Speed
The DriveStation Ultra features the revolutionary Thunderbolt 2 storage technology, raising the bar on how you transfer, store and transport data. Delivering speeds up to an amazing 1243 Mbps in RAID 0, this desktop Thunderbolt 2 drive uses the fastest interface available.
High capacity and scalability
DriveStation Ultra is available in two capacities – 40 TB and 80 TB. The 80 TB model makes it the largest capacity desktop DAS in the industry. With Thunderbolt 2 ports, daisy chain up to 6 DriveStation Ultras per port, and using all 6 ports on a Mac Pro, achieve up to 2.88 PB of storage!
Multi-interface support
n addition to the ultra–fast Thunderbolt 2 connection for Mac, users can connect to the DriveStation Ultra with USB 3.0 and eSATA connections, allowing the desktop hard drive to be accessible for both Mac and PC users.
High performance hard drives
DriveStation Ultra features ten high performance hard drives optimized for continuous 24/7/365 operation with enhanced RAID performance. These cost–effective hard drives run cooler, last longer and reduce mean time between failure.
Flexible storage and redundancy
DriveStation Ultra provides users the flexibility to easily maximize capacity or protect their data using RAID redundancy. Capable of running RAID 0, 5, and 6 gives the DriveStation Ultra the ability to safely store all your critical data.

Product Specifications:

Buffalo Part Number

  • HD-DN040T/R6

Standard Mechanism

  • (10) 4TB 3.5" SATA II NAS Hard Drives


  • 2 x Thunderbolt 2
  • 1 x USB 3.0
  • 1 x eSATA

RAID Support

  • RAID 0
  • RAID 5
  • RAID 6

OS Support

  • Mac OS X 10.9 and 10.10
  • Windows 8.1 (32-bit/64-bit), Windows 8 (32-bit/64-bit), Windows 7 (32-bit/64-bit), Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, and Windows Server 2008,

Max Data Transfer Rate

  • 5 Gbps - USB 3.0
  • 80 Mbps - USB 2.0

Hardware Monitoring

  • HDD Status
  • Power
  • Access
  • Fail

Power Supply

  • AC 100-240V, 50/60 Hz

Power Consumption

  • Max 350 W


  • 7.48" x 15.24" x 12.60" (18.99 x 15.24 x 32.00 cm)


  • 39.68lb (17.99kg)


Manufacturer provided specifications for Buffalo p/n HD-DN040T/R6 UPC#: 747464131382



  • DriveStation Ultra – 40TB Solution
  • Thunderbolt cable
  • USB 3.0 cable
  • eSATA cable
  • Quick setup guide
Buffalo 40TB DriveStation Ultra Mfr P/N: HD-DN040T/R6 OWC SKU: BUFHDDN040TR6 DAS Solution with dual Thunderbolt 2, USB 3.0, & eSATA ports. Supports RAID 0, 5, & 6. Buffalo Americas 3 Year Limited Warranty Ships: 24-48 hrs only $4,799.99
Add to CartBuffalo HD-DN040T/R6, Click to Buy Now
Additional Capacities:
  • 40.0TB
  • 80.0TB
    • Ships: 24-48 hrs
    • OWC Price $9,999.99