TerraMaster d4-ssd

Description

TerraMaster D4 SSD – A compact 4‑bay M.2 NVMe SSD enclosure that lets you install up to four NVMe drives for ultra‑fast external storage. It connects over USB 4/Thunderbolt with up to 40 Gbps transfer speeds, supports up to 32 TB total capacity, and is ideal for high‑speed tasks like 4K video editing and large file transfers.

Specifications

General Specs

• Drive Bays: 4 x M.2 NVMe SSD slots (2280) supporting PCIe 3.0/4.0/5.0 SSDs

• Maximum Raw Capacity: Up to 32 TB (8 TB per SSD × 4)

• RAID Support: Single‑disk mode (no hardware RAID; software RAID via OS/tools)

Interface & Performance

• Host Interface: USB4 (40 Gbps)

• Backward Compatibility: Works with Thunderbolt 3/4/5 and USB3.x/2.0 devices

• Max Read Speed: Up to ~3257 MB/s (with 4× Samsung 990 PRO in RAID0)

• Max Write Speed: Up to ~3192 MB/s (with 4× Samsung 990 PRO in RAID0)

• Single SSD Speed: ~1600 MB/s read / ~1500 MB/s write

Physical & Power

• Dimensions: 138 × 60 × 140 mm

• Net Weight: ~392 g

• System Fans: 2 × 50 × 50 × 10 mm with smart control

• Noise Level: ~19 dB(A) in standby

• Power Supply: 24 W adapter included

Environmental & Compatibility

• Operating Temp: 0 °C to 40 °C

• Storage Temp: –20 °C to 60 °C

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

• Supported OS: macOS, Windows 11 (and newer)

• Certifications: CE, FCC, CCC, KC; RoHS compliant

Key Features

Ultra‑Fast USB 4 Connectivity (Up to 40 Gbps)

The D4 SSD uses the USB 4 interface, which supports up to 40 Gbps data transfer bandwidth — far faster than standard USB 3.2 ports. That means when you install high‑performance NVMe SSDs, large file transfers, video editing, and backups happen much faster. It’s also backward compatible with Thunderbolt 3/4/5 and older USB standards, so it works with a wide range of computers without losing basic functionality.

Massive Expandable Storage (Up to 32 TB)

This enclosure has four M.2 NVMe SSD slots, and it supports drives up to 8 TB each, giving you a total potential of 32 TB of ultra‑fast storage. This makes it ideal for storing large media libraries, project files, game collections, or virtual machine images in one place without needing multiple external drives.

Flexible Drive Management

The D4 SSD doesn’t include built‑in hardware RAID, so each SSD normally appears as a separate drive. However, you can use your computer’s OS tools or third‑party RAID software to configure RAID arrays (like RAID 0 for speed or RAID 1 for redundancy) if you need specific performance or data protection setups.

Intelligent Active Cooling

Heavy workloads — like video editing or read/write‑intensive tasks — can heat up SSDs. The D4 SSD has temperature‑controlled fans and internal thermal sensors that monitor and adjust cooling automatically. This keeps SSDs at optimal temperatures, prolongs drive life, and helps maintain consistent performance without excessive fan noise.

Quiet and Portable Design

Despite housing four drives and cooling technology, the enclosure is compact and lightweight — roughly the size of a small desktop device — and engineered to operate quietly (with noise levels as low as about 19 dB in standby). This makes it suitable for desks, editing suites, or small offices where noise matters.

Broad Device Compatibility

Plugging the D4 SSD into a computer is generally plug‑and‑play — it works with Windows, macOS, and many Linux systems. It can serve as a bootable external drive (for macOS or Windows) or as high‑speed storage for media workflows, backups, or general file access.

Backup & Data Tools (Optional)

Some configurations and retail versions offer additional software tools (like mobile backup apps and desktop backup software) to make it easier to handle backups from phones or schedule backups on Windows systems, adding convenience for mixed device environments.