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TERRAMASTER D2-320 USB RAID Enclosure - USB 3.2 Gen 2 10Gbps Type C 2Bay Direct Attached Storage Supports RAID 0, 1, Single, JBOD (Diskless)
TERRAMASTER

D2-320 USB RAID Enclosure - USB 3.2 Gen 2 10Gbps Type C 2Bay Direct Attached Storage Supports RAID 0, 1, Single, JBOD (Diskless)

By SpecPicks Editorial · Verified 2026-07-22

$103.99
Buy on Amazon — $103.99 Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

Bottom line: The D2-320 USB RAID Enclosure - USB 3.2 Gen 2 10Gbps Type C 2Bay Direct Attached Storage Supports RAID 0, 1, Single, JBOD (Diskless) is a niche pick — read recent reviews before buying in the external storage category, priced around $103.99. Read recent reviews carefully before committing.

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SpecPicks Verdict

SpecPicks classifies TERRAMASTER D2-320 USB RAID Enclosure - USB 3.2 Gen 2 10Gbps Type C… as a niche pick — read recent reviews before buying in the external storage category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. TERRAMASTER's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Backed by TERRAMASTER's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • High Speed: The D2-320 hard drive enclosure (a DAS, NOT a NAS) adopts USB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. With 2 hard drives in RAID 0, the read/write speed can reach up to 521MB/s (SATA III HDD 8TB x 2). With 2 SSD’s in RAID 0, the read speed can reach 1075MB/s (SATA III 1TB SSD x 2).
  • Multiple RAIDs supported: The D2-320 is a hardware RAID enclosure and it supports RAID 0, RAID 1, JBOD and SINGLE which can better satisfy various demands of users. In RAID 1, data will be in a mirror backup. When there is a damaged hard drive, you can directly replace the hard drive, and the data will be recovered automatically. This provides an absolute security for the data.
  • Super-large Storage Space: The D2-320 USB storage enclosure can support up to two 3.5" and 2.5" SATA HDD, as well as 2.5" SATA SSD, with a maximum capacity of 22TB per drive, providing users with up to 44TB (22TB x 2) of storage space.
  • Better Heat Dissipation: The D2-320 HDD enclosure has an intelligent temperature-controlled and low-noise fan that automatically adjusts its speed based on the temperature of the hard disk. This feature ensures that the hard disk operates at its best temperature and provides better heat dissipation.
  • Convenient to swap hard drives: The D2-320 external hard drive enclosure features a tool-free hard drive tray design that allows for easy installation and removal of hard drives without the need for any tools. Furthermore, the D2-320 incorporates a brand new Push-lock unique design from TerraMaster, which automatically locks the hard drive tray when you insert the hard drive, preventing the hard drive from falling out or disconnecting.

Full Specifications

BrandTERRAMASTER
ColorBlack
ConnectivityUSB
Model NumberD2-320
Built-In MediaPower Adapter, Quick Installation Guide, USB Cable
Mfr Part Numberusb_enclosure
Hardware PlatformWindows, Mac, Linux
Compatible DevicesHard Disk, SSD
Data Transfer Rate10 Gigabits Per Second
Enclosure MaterialPlastic
Hardware InterfaceUSB 3.2 Gen 2
Warranty Description2 Years
Hard Disk Form Factor3.5 Inches
Item Dimensions L x W x H8.74"L x 4.69"W x 6.06"H

Ready to buy?

TERRAMASTER D2-320 USB RAID Enclosure - USB 3.2 Gen 2 10Gbps Type C 2Bay Direct Attached Storage Supports RAID 0, 1, Single, JBOD (Diskless) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

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TERRAMASTER D2-320 USB RAID Enclosure - USB 3.2 Gen 2 10Gbps Type C 2Bay Direct Attached Storage Supports RAID 0, 1, Single, JBOD (Diskless)
$103.99
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