---
product_id: 612850356
title: "TERRAMASTER D4-320 External Hard Drive Enclosure - 4bay USB 3.2 Gen2 10Gbps Type-C USB Storage Hot Swappable Plug and Play (Diskless)"
brand: "terramaster"
price: "A$465"
currency: AUD
in_stock: true
reviews_count: 8
category: "Terramaster"
url: https://www.desertcart.com.au/products/612850356-terramaster-d4-320-external-hard-drive-enclosure-4bay-usb-3
store_origin: AU
region: Australia
---

# 10Gbps USB 3.2 Gen2 speed Hot-swappable drives Tool-free push-lock trays TERRAMASTER D4-320 External Hard Drive Enclosure - 4bay USB 3.2 Gen2 10Gbps Type-C USB Storage Hot Swappable Plug and Play (Diskless)

**Brand:** terramaster
**Price:** A$465
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your storage game with speed, silence, and simplicity!

## Quick Answers

- **What is this?** TERRAMASTER D4-320 External Hard Drive Enclosure - 4bay USB 3.2 Gen2 10Gbps Type-C USB Storage Hot Swappable Plug and Play (Diskless) by terramaster
- **How much does it cost?** A$465 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/612850356-terramaster-d4-320-external-hard-drive-enclosure-4bay-usb-3)

## Best For

- terramaster enthusiasts

## Why This Product

- Trusted terramaster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blazing Fast Transfers:** Experience ultra-responsive data flow with USB 3.2 Gen2 at 10Gbps—perfect for heavy workloads and seamless multitasking.
- • **Effortless Drive Swaps:** Hot-swappable bays let you replace or upgrade drives on the fly without downtime—stay productive, always.
- • **Tool-Free Installation:** Push-lock trays mean no screws, no hassle—just snap in your drives and get back to business in seconds.
- • **Whisper-Quiet Operation:** Intelligent cooling and sound-absorbing design reduce noise by 50%, keeping your workspace calm and focused.
- • **Massive Storage Potential:** Support up to 120TB across 4 bays—future-proof your data needs with flexible compatibility for HDDs and SSDs.

## Overview

The TERRAMASTER D4-320 is a sleek 4-bay external hard drive enclosure featuring USB 3.2 Gen2 Type-C connectivity for blazing 10Gbps transfer speeds. It supports up to 120TB total capacity with hot-swappable, tool-free drive trays, and offers cross-platform compatibility (Windows, Mac, Linux). Designed for professionals demanding reliable, quiet, and efficient storage expansion without RAID complexity.

## Description

desertcart.com: TERRAMASTER D4-320 External Hard Drive Enclosure - 4bay USB 3.2 Gen2 10Gbps Type-C USB Storage Hot Swappable Plug and Play (Diskless) : Electronics

Review: Good Design, Good Value, and Reliable - This is a really great drive enclosure for three reasons: design, reliability, and value. I really appreciated the tool-less design. I fully loaded the enclosure with 4 drives in probably less time then it would take to screw mounting plates onto a single drive for other enclosures or a PC case. This also means that drive replacements in the future will also be quick. Not as important, but the general appearance is also very nice--a very clean design. I have owned several external USB drive enclosures in single and dual bay capacities in the past, but most of them were not reliable. In the middle of long transfers, the USB connection would always drop and I would give up entirely. This led me to think that USB was too unreliable for large data transfers and external hard drives in general. I am currently using this drive enclosure for storing large data backups, merged with DrivePool with parity by snapraid. The size of an individual backup can exceed 3 TB and this enclosure has not failed me yet. The connection is reliable. Multiple drive bay enclosures can get quite expensive. That this one goes for less than the price of a large capacity NAS hard drive makes it very affordable and a good value. Would definitely buy again and would consider other drive enclosures from Terramaster in the future.
Review: Now my Mac M4 Mini NAS is good enough to go live. - Exactly what I needed... yes, it's shaped like a NAS.... but it's 1/2 the price while having the same design, I assume. This was replacing an external drive dock that I had which didn't reduce the noise of the two white label disks I had in them. This one doesn't make it fully soundproof but it is noticeably quieter... to the point where it doesn't make a loud annoying beep... but just turns on. No USB-3 B connector... a USB-C cable.... Performance is very good and while it's not 100% quiet, it's far better than the cheap unknown brand I had before. It fits and looks nice on a shelf.... and by default, the unit comes in Single configuration which has each disk as an independent disk... no RAID or JBOD (one logical disk with two disks....) In "single" mode, it worked how I wanted it with two separate mounts to where I could easily swap out 3.5" disks as needed (which I hopefully won't need)... but nice to have the option. So it's basically like a NAS that I would have bought but it's hooked into my Mac Mini M4 which is a far better NAS interface for what I want to do with it.

## Features

- High-Speed Data Transmission: The D4-320 hard drive enclosure (a DAS, NOT a NAS) utilizes the USB 3.2 Gen2 protocol, achieving high-speed data transmission of up to 10Gbps. When equipped with four hard drives, the actual read/write speed can reach up to 1,016 MB/s (combined read/write with four SATA III HDDs of 8TB each). With just one SSD installed, the read speed effortlessly reaches 510 MB/s (SATA III 1TB SSD). The D4-320 supports a single HDD up to 30TB, with a total capacity of 120TB, and is compatible with various hard drives, including 3.5-inch SATA hard drives, 2.5-inch SATA hard drives, and 2.5-inch SATA SSDs.
- Plug-and-Play Compatibility: The D4-320 USB storage supports 4 individual disks (NO RAID function), and is plug-and-play, eliminating the need for drivers. It is highly compatible with MAC, Windows, and Linux operating systems. The USB Type-C interface supports various computer interfaces, including USB 3.0, USB 3.1, USB 3.2, Thunderbolt 3, and Thunderbolt 4.
- Hot Swappable Convenience: The D4-320 HDD enclosure supports hot swapping, allowing users to replace hard disks without powering off the device. This feature enhances convenience and efficiency in data transfer processes.
- Tool-Free Hard Drive Management: Featuring a tool-free hard drive tray design, the D4-320 external HDD enclosure enables easy installation and removal of hard drives without requiring additional tools. Furthermore, the D4-320 incorporates TerraMaster's unique Push-lock design, automatically securing the hard drive tray upon insertion, preventing the hard drive from falling out or disconnecting.
- Efficient Heat Dissipation and Quieter Operation: The D4-320 direct attached storage incorporates an intelligent temperature-controlled fan for optimal heat dissipation. Additionally, specialized sound-absorbing panels and vibration damping measures contribute to a quieter operation, with noise levels reduced by up to 50% compared to the previous generation. In standby mode, the noise level drops below 21 dB(A), creating a remarkably quiet user environment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CTTL9R7Z |
| Best Sellers Rank | #27 in Enclosures |
| Compatible Devices | Windows, Mac, Linux |
| Customer Reviews | 4.2 4.2 out of 5 stars (431) |
| Data Transfer Rate | 10 Gigabits Per Second |
| Date First Available | February 2, 2024 |
| Global Trade Identification Number | 06939236143790 |
| Hard Disk Form Factor | 3.5 Inches |
| Item Weight | 1.3 pounds |
| Item model number | D4-320 |
| Manufacturer | TERRAMASTER |
| Material | Plastic |
| Max Number of Supported Devices | 4 |
| Product Dimensions | 8.74 x 7.04 x 6.06 inches |

## Product Details

- **Brand:** TERRAMASTER
- **Color:** Black
- **Hardware Interface:** SATA 6.0 Gb/s, USB 3.2 Gen 2
- **Hardware Platform:** Windows, Mac, Linux
- **Product Dimensions:** 8.74"L x 7.05"W x 6.06"H

## Images

![TERRAMASTER D4-320 External Hard Drive Enclosure - 4bay USB 3.2 Gen2 10Gbps Type-C USB Storage Hot Swappable Plug and Play (Diskless) - Image 1](https://m.media-amazon.com/images/I/5105y9SBRJL.jpg)

## Available Options

This product comes in different **Model** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Design, Good Value, and Reliable
*by V***U on January 17, 2026*

This is a really great drive enclosure for three reasons: design, reliability, and value. I really appreciated the tool-less design. I fully loaded the enclosure with 4 drives in probably less time then it would take to screw mounting plates onto a single drive for other enclosures or a PC case. This also means that drive replacements in the future will also be quick. Not as important, but the general appearance is also very nice--a very clean design. I have owned several external USB drive enclosures in single and dual bay capacities in the past, but most of them were not reliable. In the middle of long transfers, the USB connection would always drop and I would give up entirely. This led me to think that USB was too unreliable for large data transfers and external hard drives in general. I am currently using this drive enclosure for storing large data backups, merged with DrivePool with parity by snapraid. The size of an individual backup can exceed 3 TB and this enclosure has not failed me yet. The connection is reliable. Multiple drive bay enclosures can get quite expensive. That this one goes for less than the price of a large capacity NAS hard drive makes it very affordable and a good value. Would definitely buy again and would consider other drive enclosures from Terramaster in the future.

### ⭐⭐⭐⭐⭐ Now my Mac M4 Mini NAS is good enough to go live.
*by L***N on January 19, 2026*

Exactly what I needed... yes, it's shaped like a NAS.... but it's 1/2 the price while having the same design, I assume. This was replacing an external drive dock that I had which didn't reduce the noise of the two white label disks I had in them. This one doesn't make it fully soundproof but it is noticeably quieter... to the point where it doesn't make a loud annoying beep... but just turns on. No USB-3 B connector... a USB-C cable.... Performance is very good and while it's not 100% quiet, it's far better than the cheap unknown brand I had before. It fits and looks nice on a shelf.... and by default, the unit comes in Single configuration which has each disk as an independent disk... no RAID or JBOD (one logical disk with two disks....) In "single" mode, it worked how I wanted it with two separate mounts to where I could easily swap out 3.5" disks as needed (which I hopefully won't need)... but nice to have the option. So it's basically like a NAS that I would have bought but it's hooked into my Mac Mini M4 which is a far better NAS interface for what I want to do with it.

### ⭐⭐⭐⭐ BEWARE: These may not be able to power up all four drives at once
*by A***R on July 20, 2025*

UPDATE (Still be aware of your drives' power draw): Terramaster sent me an upgraded power supply (90w vs 72w) to see if it would power up the EXOS drives more reliably. The larger power supply does handle the peak power draw on these drives better. My Kill-A-Watt measures peak power draw when all 4 drives are spinning up at just under 150w, which is too much for the included 72w power supply. Most drives are not going to need this much power, and the unit will work fine for most consumer drives, and most smaller capacity drives. Check the peak power draw in your drives' user manual. This is typically not the same as the numbers on the spec sheets, at least for EXOS drives. For example, the EXOS drives peak at around 35 watts during spin-up, while the spec sheets only discuss the running power at around 10 watts. If you have issues with your drives failing to spin up, contact Terramaster and request the 90w unit, or even better, contact them before you purchase and see if they can send you one to begin with. Other than this issue, the unit is great. It is quiet, easy to install the drives, and seems to just work. That, and the fact that TM volunteered (I didn't ask) to send out a larger power supply, is why I'm bumping this to 4 stars instead of 3. I have a feeling that this unit will just work for most people. INITIAL REVIEW: BEWARE: The unit does not have enough power to spin up 4 drives simultaneously, at least with the Seagate Exos drives I put in. You may need to pull a drive, let it spin up the 3 remaining drives, then insert the last drive hot. This is the only way I've been able to get it to work with 4 drives. Apparently some manufacturers spin up the drives in sequence, rather than simultaneously in order to avoid this problem. This is a HUGE problem for a device that advertises support for 4 drives. Requiring physical interaction like pulling a drive at every power up is problematic. I haven't yet tested whether this will affect the usage post power-up. If, for example, the drives spin down, will it even be able to spin them back up when data is being accessed? I've emailed customer support about this, and will update the review when / if I hear back.

## Frequently Bought Together

- TERRAMASTER D4-320 External Hard Drive Enclosure - 4bay USB 3.2 Gen2 10Gbps Type-C USB Storage Hot Swappable Plug and Play (Diskless)
- Cable Matters [USB-IF Certified] 10Gbps Gen 2 USB A to USB C Cable - 3.3 ft, USBC to USBA Cable, Black, Compatible with iPhone 16/15 Pro Max/Plus

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-08*