New Terramaster D4-320 4-Bay USB (10Gbit) JBOD Disk Enclosure


Introducing the TerraMaster D4-320: A New Era of High-Speed Data Storage

Terramaster, a leading provider of storage solutions, has unveiled its latest innovation, the D4-320 4-Bay USB JBOD Disk Enclosure. This refreshed model promises enhanced performance and convenience, catering to the evolving needs of users seeking reliable storage solutions. Packed with advanced features and boasting an attractive price point of £179.99, the D4-320 is set to revolutionize the way users manage their data.

Unmatched Speed and Efficiency

One of the standout features of the D4-320 is its remarkable speed. Utilizing the USB 3.2 Gen2 protocol, this enclosure delivers blazing-fast data transfer speeds of up to 10 Gbps, representing a 100% increase over its predecessor. With four hard drives installed, users can achieve read/write speeds of up to 1,016 MB/s, ensuring seamless performance even with intensive workloads.

Effortless Hard Drive Management

Gone are the days of cumbersome hard drive installations. The D4-320 introduces a tool-free installation mechanism, allowing users to effortlessly swap out hard drives within seconds. TerraMaster’s innovative Push-lock design ensures a secure connection, minimizing the risk of detachment and ensuring uninterrupted data transmission.

Enhanced Cooling and Reduced Noise

The D4-320 is equipped with an intelligent, temperature-controlled fan that operates quietly while effectively dissipating heat. Innovative vibration damping measures and sound-absorbing panels reduce noise levels by up to 50%, creating a quieter work environment without compromising on performance.

Versatile Storage Expansion

With support for up to four hard drives, each with a maximum capacity of 22 TB, the D4-320 offers an impressive total storage capacity of 88 TB. Compatible with various hard drive types, including SATA HDDs and SSDs, users can customize their storage configuration to suit their specific needs.

Seamless Connectivity and Plug-and-Play Functionality

Featuring a USB Type-C interface, the D4-320 offers seamless connectivity to a wide range of devices, including computers, servers, and set-top boxes. Thanks to its driverless, plug-and-play functionality, users can enjoy hassle-free setup and effortless data sharing across different platforms.

Intelligent Features for Optimal Performance

The D4-320 comes equipped with intelligent features such as hot swapping and disk sleep mode management, optimizing performance while extending the lifespan of hard drives. Additionally, compatibility with TerraMaster NAS devices allows for easy storage expansion, providing users with a flexible and scalable solution for their data storage needs.


With its unparalleled speed, ease of use, and robust features, the TerraMaster D4-320 sets a new standard for external disk enclosures. Whether you’re a professional seeking reliable storage for your creative projects or a home user in need of additional space for your multimedia library, the D4-320 delivers unmatched performance and versatility. Upgrade to the D4-320 today and experience the future of high-speed data storage.




Disk Slot Number 4
Compatible Disk Types 3.5″ SATA HDD
File System NTFS, APFS, Mac OS,FAT32,EXT4,exFAT
Maximum Internal Raw Capacity 88 TB (22 TB drive x 4)
Hardware RAID /
RAID Manager Software /
RAID Manager Software Language /
RAID Online Expansion /
RAID Migration /
RAID Auto-rebuilding /
Drive Hot Swap
HDD Sleep
HDD S.M.A.R.T. Inspection /
Sector Inspection and Parity Check /
SSC Cache /
Daisy Chain /
HDD NCQ Technology /
Alert Notice /
Event Log /
External Ports
USB USB3.2 Type-C gen2  10Gbps
Thunderbolt /
DP Interface /
Network Interface /
USB HOST Interface /
Power Socket DC IN 12V
Reading/writing Speed (max.)
Reading Speed (max.) Read:560MB/s ( SSD* 1 ); Read:1016MB/s ( SSD* 4);
Writing Speed (max.) Write:520MB/s ( SSD*1 ); Write:960MB/s ( SSD*4 );
Size (H*W*D) 222 x 179 x 154   mm
Packaging Size (H*W*D) 300 x 275 x 186  mm
Weight net weight:  1.9Kg   Gross Weight:3.1 Kg
System fan 120 x 120 x 25mm  1PCS
Fan mode Smart
Noise Level 21.0dB(A)
Power Supply
Power Supply 72 W
AC Input Voltage 100V to 240V AC
Current Frequency 50/60 HZ, Single Phase
Power Consumption 33.2 W(Access)
Environment Temperature
Working Temperature 0°C  ~ 40°C (32°F ~ 104°F)
Storage Temperature -20°C ~ 60°C (-5°F ~ 140°F)
Relative Humidity 5% ~ 95% RH
Supported OS Windows OS、Mac OS
Warranty 2 years
Certificate CE, FCC, CCC, KC
Environment RoHS compliance
Package Contents: Host unit (x1)
Power cord (x1)
USB Cable A to Type-C(10Gb) (x1)
Quick Installation Guide (x1)
Power adapter (x1)
Screws (several)
Limited Warranty Note x 1

If you like this service, please consider supporting us.
We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you. Anything you purchase on the day you click on our links will generate a small commission which is used to run the website. Here is a link for Amazon and B&H. You can also get me a ☕ Ko-fi or old school Paypal. Thanks! To find out more about how to support this advice service check HERE   If you need to fix or configure a NAS, check Fiver   Have you thought about helping others with your knowledge? Find Instructions Here  


Or support us by using our affiliate links on Amazon UK and Amazon US

locked content ko-fi subscribe

DISCUSS with others your opinion about this subject.
ASK questions to NAS community
SHARE more details what you have found on this subject
CONTRIBUTE with your own article or review. Click HERE
IMPROVE this niche ecosystem, let us know what to change/fix on this site
EARN KO-FI Share your knowledge with others and get paid for it! Click HERE