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TERRAMASTER D4 SSD - 4-bay M.2 NVMe enclosure, USB4 40 Gbps (diskless)
SSD enclosures

TERRAMASTER D4 SSD

The D4 SSD holds four M.2 NVMe SSDs in a book-sized USB4 enclosure. Up to 32 TB of fast storage sits quietly on your desk for editing and large transfers.

Slots
4 x M.2 2280 NVMe
Interface
USB4, 40 Gbps
RAID
No built-in RAID (single disks)
Drive format
M.2 2280 NVMe, up to 8 TB each
  • USB4 40 Gbps, up to 3,224 MB/s
  • Four M.2 2280 NVMe slots, up to 32 TB
  • Quiet active cooling, below 19 dB in standby
  • Compatible with Thunderbolt 3/4/5
  • Auto restart after a power cut
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Day to day

  1. 1USB4 at 40 Gbps reaches up to 3,224 MB/s with four fast SSDs and 1,608 MB/s with a single SSD.
  2. 2Four M.2 2280 NVMe SSDs of up to 8 TB each provide up to 32 TB of fast storage.
  3. 3The book-sized, lightweight enclosure fits on a desk, a shelf or in a bag.
  4. 4Temperature-controlled fans and four internal sensors keep SSDs cool while standby noise stays below 19 dB.
  5. 5Backwards compatible with Thunderbolt 3, 4 and 5 and USB 3.2, 3.1 and 3.0 on Mac, Windows and Linux.
  6. 6Power-loss recovery restarts the enclosure automatically, and the TDAS Mobile app and TPC Backupper handle phone and PC backups.

Real-life uses

4K editing workspace

Work on large video projects from four fast NVMe SSDs.

Compact desktop expansion

Add up to 32 TB to a small computer with one USB4 cable.

Phone and PC backup

Back up phones with TDAS Mobile and Windows PCs with TPC Backupper.

Right for you if…

Creators and professionals who want several fast NVMe SSDs in one quiet external enclosure.

Check before you buy

Supplied diskless: M.2 2280 NVMe SSDs are sold separately, up to 8 TB each. There is no built-in RAID; SSDs work as single disks, and full speed needs a USB4 or Thunderbolt port.

Specifications

SSD slots
4 x M.2 2280 NVMe
Maximum capacity
32 TB (4 x 8 TB)
Interface
USB4 Type-C, 40 Gbps
Speed
Up to 3,224 MB/s (4 SSDs), 1,608 MB/s (1 SSD)
RAID
No built-in RAID, single-disk mode
Standby noise
Below 19 dB
Power
12 V / 2 A adapter, 12-20 V input
Compatibility
Thunderbolt 3/4/5, USB 3.2/3.1/3.0
SSDs included
No (diskless)

Frequently asked questions

Does the D4 SSD support RAID?+

There is no built-in RAID: each SSD works as a single disk, and software RAID is possible with third-party tools.

How fast is it?+

Up to 3,224 MB/s with four fast SSDs, or 1,608 MB/s with one SSD, over USB4.

Is it noisy?+

No. Temperature-controlled fans keep standby noise below 19 dB.

TERRAMASTER D4 SSD

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In the same family

TERRAMASTER D1 SSD - rugged M.2 NVMe enclosure, USB 3.2 10 Gbps, IP67 (diskless)1 x M.2 2280 NVMe

D1 SSD

The D1 SSD turns an M.2 NVMe SSD into a rugged pocket drive rated IP67 and tested against 1.2 tonnes of crushing force. It is fanless, silent and reaches up to 1020 MB/s over USB 3.2 Gen 2.

USB 3.2 Gen 2, 10 Gbps
TERRAMASTER D1 SSD Plus - M.2 NVMe enclosure, 40 Gbps USB4, aluminium (diskless)1 x M.2 2280 NVMe

D1 SSD Plus

The D1 SSD Plus is a 40 Gbps M.2 NVMe enclosure for fast external storage and backups. Its fanless aluminium body stays cool and silent, even during long transfers.

USB4, 40 Gbps
TERRAMASTER D1 SSD Pro - M.2 NVMe enclosure, 80 Gbps, up to 7061 MB/s (diskless)1 x M.2 2280 NVMe

D1 SSD Pro

The D1 SSD Pro is an 80 Gbps NVMe enclosure that reads at up to 7061 MB/s for real-time high-resolution editing. Its CNC aluminium body cools the SSD without a fan.

80 Gbps, Thunderbolt 5 compatible
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