TERRAMASTER
TERRAMASTER D6-320 External Hard Drive Enclosure 6-Bay (Diskless)
Bottom line: The TERRAMASTER D6-320 External Hard Drive Enclosure 6-Bay: Six bays scale to 132TB total (22TB x 6 SATA drives); main trade-off: no RAID or array support — works as individual disks only.
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Pros & Cons
Pros
- ✓ Six bays scale to 132TB total (22TB x 6 SATA drives)
- ✓ USB 3.2 Gen2 10Gbps, up to 1,030MB/s with six HDDs installed
- ✓ Hot-swap drives without powering down the enclosure
- ✓ Driverless plug-and-play on Mac, Windows, and Linux
- ✓ Temp-controlled low-noise fan auto-adjusts to drive heat
Cons
- ✗ No RAID or array support — works as individual disks only
- ✗ Diskless unit: six SATA drives cost extra, not included
- ✗ DAS not NAS — must stay tethered to a computer, no network access
- ✗ Single SSD read caps at 510MB/s, below the 10Gbps ceiling
SpecPicks Verdict
SpecPicks scored TERRAMASTER D6-320 External Hard Drive Enclosure 6-Bay using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. TERRAMASTER's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- High Speed Data Transmission: The D6-320 hard drive enclosure (a DAS, NOT a NAS) adopts USB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. With 6 hard drives installed, the read/write speed can reach up to 1,030MB/s (SATA III HDD 8TB x 6). With one SSD installed, the read speed can reach 510MB/s (SATA III 1TB SSD x 1)
- Super-Large Storage Capacity: The D6-320 HDD storage enclosure can support up to six 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 132TB (22TB x 6) of storage space. Note that the D6-320 does not support arrays and only works with individual disks
- Plug and Play Compatibility: The D6-320 das storage is a plug-and-play device that doesn't require drivers to work. It is highly compatible with MAC, Windows, and Linux operating systems. It has a USB Type-C interface and comes with a USB type C-type C cable. The device is compatible with various computer interfaces, including USB 3.0, USB 3.1, USB 3.2, Thunderbolt 3, and Thunderbolt 4
- Hot Swappable Functionality: The D6-320 USB enclosure supports hot swapping, which allows you to replace the hard disk without having to power off the device. This feature makes data transfer more convenient and efficient
- Intelligent Heat Dissipation System: The D6-320 USB storage 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
Full Specifications
| Brand | TERRAMASTER |
|---|---|
| Material | Metal |
| Connectivity | USB |
| Model Number | D6-320 |
| Compatibility | Mac, Linux |
| Built-In Media | Hard Drive Enclosure |
| Mfr Part Number | D6-320 |
| Number of Items | 1 |
| Hardware Platform | Windows, Mac, Linux |
| Compatible Devices | Windows, Mac, Linux |
| Data Transfer Rate | 10 gigabits_per_second |
| Enclosure Material | Metal |
| Hardware Interface | USB 3.2 Gen 2 |
| Warranty Description | 2 Years |
| Hard Disk Form Factor | 3.5 inches |
| Connectivity Technology | SATA, Thunderbolt, USB |
| Item Dimensions L x W x H | 8.58"L x 5.12"W x 8.9"H |
| Supported Devices Quantity | 6 |
Ready to buy?
TERRAMASTER D6-320 External Hard Drive Enclosure 6-Bay (Diskless) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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