TerraMaster d4-300

Specifications

General

• Drive Bays: 4 × SATA (3.5″ HDD / 2.5″ HDD / 2.5″ SSD)

• Maximum Raw Capacity: Up to 80 TB (20 TB per bay)

• Drive Hot‑Swap: Yes

• File Systems Supported: NTFS, APFS, Mac OS, FAT32, EXT4, exFAT

Interface & Performance

• External Port: 1 × USB 3.1 Gen 1 Type‑C

• Max Read Speed: ~420 MB/s (with SSD)

• Max Write Speed: ~390 MB/s (with SSD)

Physical & Power

• Dimensions: 227 × 225 × 136 mm

• Weight: ~2.1 kg net (3.5 kg gross)

• Power Supply: 72 W, 100–240 V AC

• Cooling: Dual 80 mm smart fans (≈19.8 dB(A))

Operating Conditions & Support

• Temperature: 5°C–40°C operating; -20°C–60°C storage

• Humidity: 5 %–95 % RH

• Supported OS: Windows, macOS, Linux

• Warranty: 2 years

Package Includes

• Enclosure unit

• Power adapter & cord

• USB‑C to USB‑A cable

• Screws & quick install guide

Features

🔹 Massive Storage Capacity

The D4‑300 supports four SATA drives (3.5″ HDDs, 2.5″ HDDs, or 2.5″ SSDs), allowing you to combine up to 80 TB of raw storage (with four 20 TB drives). This makes it ideal for storing very large collections of photos, videos, backups, or project files without needing multiple external drives.

🔹 High‑Speed USB‑C Connectivity

It includes a USB 3.1 Gen 1 Type‑C port, which provides fast, reliable data transfers up to around 410 MB/s read and 390 MB/s write when used with SSDs. This ensures smooth performance for tasks like video editing, large file copying, and backups.

🔹 Plug‑and‑Play Compatibility

The D4‑300 works without special drivers — simply connect it via USB‑C to Windows, macOS, or Linux systems and it’s ready to use. This plug‑and‑play setup makes it extremely easy to integrate into existing workflows on most computers and many USB‑C devices.

🔹 Versatile Drive Support

Because it supports both HDDs and SSDs of different sizes (2.5″ and 3.5″), you can tailor your setup for capacity, speed, or a mix of both. You might put high‑capacity HDDs for storage and SSDs for speed‑intensive tasks — all in the same enclosure.

🔹 Hot‑Swappable Drive Bays

All four drive bays are hot‑swappable, meaning you can insert or remove drives without powering off the unit. This is especially useful when you’re expanding storage, replacing failed drives, or reorganizing your storage setup without downtime.

🔹 Intelligent Cooling and Temperature Control

The enclosure features smart fans that adjust speed based on internal temperature. This keeps your drives running at optimal temperatures, prolonging their lifespan and reducing the risk of heat‑related performance drops.

🔹 Cross‑Platform Backup & Media Support

With support for common file systems like NTFS, exFAT, APFS, FAT32, and EXT4, the D4‑300 works seamlessly with a wide range of backup tools and media applications across different operating systems.

🔹 Energy‑Efficient Operation

The unit can automatically enter sleep mode along with your connected computer, reducing power usage when idle. This helps save energy and reduces wear on your drives over time.

Applications

Here are common applications for the TerraMaster D4‑300;

• Mass Backup Storage — central place to store system backups, project files, and archives.

• Media Library — keep large collections of photos, videos, and music accessible from one enclosure.

• Video Editing Workspace — use high‑speed drives inside for editing 4K/8K video directly from the unit.

• Content Creation Storage Pool — shared storage for creative workflows (illustrations, audio, design files).

• Software & VM Storage — host virtual machine images or large software libraries externally.

• Gaming Storage Expansion — add more space for game libraries without upgrading internal drives.

• Data Transfer Between Computers — easily move large data sets between different systems via USB‑C.

• Archive & Long‑Term Storage — store old projects and seldom‑used data off the main system.

• Hybrid SSD/HDD Setup — combine SSD speed with HDD capacity in one enclosure for flexible performance.

• Drive Testing & Cloning — swap multiple drives in and out for diagnostics or cloning tasks.