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TerraMaster D6-320 Review: Ultimate 6-Bay NAS

TerraMaster D6-320 6-Bay: Quick Overview

Disk Slot Number6
Compatible Disk Types3.5″ SATA HDD, 2.5″ SATA HDD, 2.5″ SATA SSD
Max Internal Raw Capacity132TB
Reading/Writing SpeedUp to 1016MB/s (Read), 986MB/s (Write)
Noise Level28.4 dB(A)
Power Supply120W, AC Input 100V to 240V
Size226 x 130 x 218 mm
WeightNet weight 3.4 Kg, Gross weight 4.5 Kg
Warranty2 years

The TerraMaster D6-320 is a versatile 6-bay external hard disk enclosure designed for users who demand speed and ample storage. Whether you’re an avid photographer storing countless high-res RAW files or a professional video editor needing flexible mass storage, the D6-320 can accommodate your needs.

TerraMaster D6-320

With the latest USB 3.2 Gen2 protocol, this device boasts an impressive 10Gbps data transmission bandwidth. This translates to real-world read and write speeds of up to 1,016MB/s (read) and 986MB/s (write) when configured with suitable hard drives. This speed is invaluable for handling large media files. Furthermore, it supports a wide range of hard drives, including 3.5-inch and 2.5-inch SATA HDDs as well as 2.5-inch SATA SSDs.

However, there are some limitations to consider. The D6-320 operates in a single-disk working mode, lacking built-in hardware RAID functionality. RAID configurations require third-party software. Additionally, if you intend to extend your NAS storage, this function is only available on TerraMaster NAS drive systems running TOS 5.1 or above.

Despite these caveats, the TerraMaster D6-320 stands out for its affordability and unique offerings, making it an attractive solution for many users.

Should You Buy a TerraMaster D6-320 NAS?

TERRAMASTER D6-320 6-BAY Pros and Cons of Data Transfer Device

  1. Speedy data transfer
  2. Versatile compatibility
  3. Reliable build
  1. No built-in RAID
  2. Aesthetic trade-offs
  3. Limited offline languages
  4. Ambient noise issues
  5. Subscription fees after one year

Price and Availability

The TerraMaster D6-320 is currently priced at $299.99. While this might seem high for an empty enclosure, it offers incredible storage flexibility.


The D6-320 features a practical, industrial-chic design with an all-metal enclosure. It comes equipped with two efficient fans at the rear to keep temperatures in check even during heavy use.


Price and Availability

This device boasts compatibility with various hard disk types, making it suitable for both amateurs and professionals. It also supports hot-swapping, simplifying drive management.


With SSDs, the D6-320 reaches transfer speeds of around 450MB/s, and even with HDDs, it manages a respectable 140MB/s with WD Red drives. It operates quietly and offers various RAID options for speed, redundancy, and capacity.

Should You Buy a TerraMaster D6-320 NAS?

If you need to consolidate hard drives or require more storage capacity, this NAS with six bays is an efficient solution. However, it has a single USB Type-C port, limiting expansion options for larger networks. Compatibility with TerraMaster NAS systems running TOS 5.1 or above is recommended.

Report Card

  • Value: 4/5
  • Design: 3.5/5
  • Features: 4/5
  • Performance: 4.5/5
  • Total: 4/5

Why You Should Buy

  • Consolidate hard drives.
  • Expand your storage capacity.

Don’t Buy If

  • You need extensive daisy-chaining capabilities.
  • You use a non-TerraMaster NAS system.

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