Features Specification
D4-320U 4-Bay DASD4-320U 4-Bay DASD4-320U 4-Bay DASD4-320U 4-Bay DAS
D4-320U 4-Bay DASD4-320U 4-Bay DASD4-320U 4-Bay DASD4-320U 4-Bay DAS

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D4-320U 4-Bay DAS

D4-320U 4-Bay DAS

$389.99 USD
$389.99 USD $389.99 USD
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Compact Design for Seamless Deployment: The D4-320U hard drive enclosure redefines convenience with itsminiaturized 1U rackmount form factor. Measuring just 241mm (9.5 inches) indepth, 50% shorter than traditional chassis and weighing 3.2kg, this sleek enclosure fits effortlessly into standard server racks without the need for rails, simplifying installation. Its space-efficient design maximizes room utilization in data centers, storage closets,stairwells, or offices, making it an ideal choice for small businesses and SOHO users seeking centralized storage solutions.

High Speed: The D4-320U HDD enclosure adoptsUSB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. With 4 hard drives installed, the read/write speed can reach up to 1,016MB/s (SATA III HDD 8TB x 4). With one hard disk installed, the read speed can reach 510MB/s (SATA III HDD 1TB SSD x 1).

Super-large Storage Space: The D4-320Udirect attached storage can support up to six 3.5" and 2.5" SATA HDD, as well as 2.5" SATA SSD, with a maximum capacity of 30TB per drive, providing users with up to 120TB (30TB x 4) of storage space. Note that the D4-320U does not support arrays and only works with individual disks.

Expandable NAS Integration: Optimized for TerraMaster NAS devices running TOS 5.1 or higher, the D4-320U external HDD enclosureconnects via USB to expand storage pools and create arrays through the robust TOS system.This feature makes it a powerful companion for users looking to scale their NAS capacity with ease.

Plug and Play, Highly Compatible: The D4-320U USB 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 two USB cables (1 x USB type C-C cable, 1 x USB type A-C cable). The device is compatible with various computer interfaces, including USB 4.0, USB 3.2, USB 3.1, USB 3.0, Thunderbolt 5 , Thunderbolt 4, and Thunderbolt 3.
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Features

Specification

D4-320U Specification

Storage  
Disk Slot Number 4
Compatible Disk Types 3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
File System NTFS, APFS, Mac OS,FAT32,EXT4,exFAT
Maximum Internal Raw Capacity 96 TB (24TB HDD * 4)
RAIDs Supported SINGLE DISK
HDD Sleep √
USB USB3.2 Type-C gen2  10Gbps
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 )；
Appearance  
Size (H*W*D) 45 x 440 x 241   mm
Packaging Size (H*W*D) 89 x 531 x 89  mm
Weight net weight:  2.7Kg   Gross Weight: 4.5Kg
Others  
System fan 40 x 40 x 20mm  3PCS
Fan mode Smart
Noise Level 26.7 dB(A) 
Power Supply  
Power Supply  72 W
AC Input Voltage 100V to 240V AC
Current Frequency 50/60 HZ, Single Phase
Power Consumption 45.5W (4 x 22TB Seagate 22TB ST22000NM001E hard drives in read/write state)
8.1 W (4 x 22TB Seagate 22TB ST22000NM001E hard drives in hibernation)
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、Linux
Warranty 2 years
Certificate CE, FCC, CCC, KC
Environment RoHS compliance
Package Contents: Host unit (x1)
Power cord (x1)
USB Cable C to C(10Gb) (0.8m x1); USB Cable A to C(10Gb) (0.8m x1)
Quick Installation Guide (x1)
Power adapter (x1)
Screws (several)
Limited Warranty Note x 1

D4-320U Product Documentation

Name Description Operation Size
D4-320U Photo Download 0.93MB