TerraMaster d5-300c

TerraMaster D5‑300C — a 5‑bay USB‑C direct‑attached storage (DAS) enclosure that lets you install up to five SATA HDDs or SSDs for large local storage with flexible RAID options. It supports the unique 2+3 RAID mode (RAID 0/1 or single on the first two drives, others independent), connects via USB‑C‑3.1 Gen1, and can reach up to ~410 MB/s read/write in RAID 0.

General

• 5 drive bays (supports 3.5″ and 2.5″ SATA HDD/SSD)

• Diskless enclosure (drives not included)

• Aluminum housing with cooling fans (2 × 80 mm)

• Net weight ~2.1 kg; dimensions ~227 × 225 × 136 mm

Storage & RAID

• RAID supported: Single Disk, RAID 0, RAID 1 (2+3 flexible config)

• RAID 1 auto‑rebuild support

• Drive hot‑swap support

• Maximum internal raw capacity up to ~100 TB (varies by drive size and RAID)

• File systems supported: NTFS, APFS, Mac OS, FAT32, EXT4, exFAT

Connectivity

• USB 3.1 Gen 1 Type‑C port (5 Gbps)

• Power input: DC IN 12V

Performance

• Max read speed ~410 MB/s (RAID 0)

• Max write speed ~400 MB/s (RAID 0)

Power & Cooling

• 90 W external power supply

• Smart fan control, ~19.8 dB(A) noise level

• Operating power consumption ~45.6 W (active)

Environmental

• Operating temperature: 5°C to 40°C

• Storage temperature: ‑20°C to 60°C

• Relative humidity: 5%–95% RH

Compatibility & OS

• Compatible with Windows, macOS, and Linux

Included in Box

• USB A‑to‑C cable, power adapter & cord, screws, quick installation guide, warranty note

Features

Exclusive 2+3 RAID Storage

This enclosure uses a unique RAID design called 2+3 RAID. Rather than forcing all five drives into a single traditional RAID group, only the first two drive bays can be configured in RAID 0 (speed) or RAID 1 (redundancy) — or as two independent single disks. The other three drives (bays 3–5) operate independently.
✅ Why this matters: You can balance performance, redundancy, and raw storage however you want — e.g., a mirrored pair for critical files and standalone drives for extra backups or media storage. This isn’t possible in many basic enclosures.

High‑Speed USB‑C Connectivity

The D5‑300C connects to your computer through a USB 3.1 Gen 1 Type‑C port, offering up to 5 Gbps of raw bandwidth. In practical terms, with the first two drives set in RAID 0, you can see read speeds up to ~410 MB/s and write speeds up to ~400 MB/s.
💡 Why this matters: This is much faster than older USB 2.0 connections and ideal for transferring large files like video projects or backups quickly. The USB‑C interface also ensures modern plug‑and‑play convenience with laptops and desktops.

Massive Storage Capacity

The enclosure supports up to five 3.5″ or 2.5″ SATA drives, accommodating large drives (up to 20 TB each). That means a potential total storage capacity of up to ~100 TB, depending on drive size and how you configure RAID.
📌 Why this matters: This makes the D5‑300C suitable for users who store huge libraries of data — like photographers, video editors, content creators, or backup archives — without needing multiple separate drives.

Wide Drive Compatibility

It works with a variety of SATA storage types:

• 3.5″ HDDs (standard desktop hard drives)

• 2.5″ HDDs

• 2.5″ SATA SSDs
  This flexibility allows mixing and matching drive types based on cost, speed, and capacity needs.
  📌 Why this matters: You can use faster SSDs for performance‑critical tasks and larger, cheaper HDDs for bulk storage all in the same box.

Sturdy Aluminum Body & Cooling

The enclosure uses a solid aluminum case and two smart‑controlled fans to dissipate heat quietly and efficiently.
🌬️ Why this matters: Good heat management protects your drives during heavy use and prolongs their lifespan while keeping noise low, which is important in office or home environments.

Cross‑Platform Compatibility

The D5‑300C works with Windows, macOS, and Linux systems and supports multiple file systems (e.g., NTFS, APFS, EXT4, exFAT).
🌐 Why this matters: You can move the enclosure between different computers and operating systems without compatibility headaches — ideal for mixed device workflows.

Hot‑Swappable Drives

The drives in the enclosure support hot‑swapping, meaning you can remove or replace a drive without powering down the unit (depending on RAID and OS).
🔧 Why this matters: This saves time and reduces disruption, especially useful for backups or when upgrading storage.