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D2-320 Hardware RAID Enclosure

  • USB3.2 Gen2 (10Gbps), supports 2× SATA HDD/SSD, max 44TB (22TB×2).
  • RAID 0 speeds: HDD 521MB/s, SSD 1075MB/s. Modes: RAID 0/1, JBOD, Single.
  • USB-C cable included, compatible with USB 3.0/3.1/3.2, Thunderbolt 3/4.
  • Expands NAS storage (TerraMaster NAS, TOS 5.1+ for RAID creation).
  • Temp-controlled fan, low noise, intelligent disk sleep (follows OS).
  • Tool-free tray, Push-lock design, <10 sec drive swap.

Note: Some mini PCs may have weaker USB signal output, which can cause random interruptions during file read/write operations during data transmission. 

When this occurs, it is recommended to:

1) use the rear USB ports of the computer, as they typically provide a more stable signal; 

2) test the device on another known-good computer to rule out hardware issues on the original PC; 

3) use a 10Gbps USB-A/USB-C hub or splitter with a short 0.3m-0.5m cable to reduce signal loss.

Products
D2-320 TERRAMASTER D2-320
5 BAY HYBRID TERRAMASTER D5 Hybrid
8 BAY HYBRID TERRAMASTER D8 Hybrid
4 BAY DAS TERRAMASTER D4-320
Drive Bays 2 2 Bays + 3 x M.2 NVMe Slots 4 Bays + 4 x M.2 NVMe Slots 4
Interface USB3.2 10Gpbs Type C USB3.2 10Gpbs Type C USB3.2 10Gpbs Type C USB3.2 10Gpbs Type C
Max. number of HDDs/SSDs 2 x 2.5" or 3.5" SATA 6Gb/s 2 x SATA HDD/SSD; 3 x M.2 SSD 4 x SATA HDD/SSD; 4 x M.2 SSD 4 x 2.5" or 3.5" SATA 6Gb/s
Max. Storage 44TB (22TB x 2) 44TB (22TB x 2) 120TB (22TB x 4 + 8TB x 4) 88TB (22TB x 4)
Reading Speed (max.) 854MB/s (2 SSD, in RAID 0) 980MB/s (1 NVMe SSD, Single) 980MB/s (1 NVMe SSD, Single) 1025MB/s (4 SSD, Single Disk)
Writing Speed (max.) 884MB/s (2 SSD, in RAID 0) 866MB/s (1 NVMe SSD, Single) 866MB/s (1 NVMe SSD, Single) 1016MB/s (4 SSD, Single Disk)
Hardware RAID
RAID Features RAID 0, 1, JBOD, Single HDD1&2 - RAID 0/1/Single/JBOD HDD1&2 - RAID 0/1/Single/JBOD No RAID
RAID Auto-rebuilding RAID1 RAID1 RAID1 No RAID
Push-Lock Tray