The TerraMaster D5‑300 is a 5‑bay external RAID storage enclosure that connects via USB 3.1 Gen1 Type‑C, lets you install your own SATA HDDs or SSDs (up to ~100 TB total), and supports multiple RAID modes for flexible, high‑capacity storage on Windows, macOS, and Linux systems.

Specifications

General

• Drive Bays: 5 × SATA (2.5″ / 3.5″ HDD & SSD)

• Maximum Capacity: Up to 100 TB (5 × 20 TB drives; varies with RAID)

• RAID Modes Supported: RAID 0, RAID 1, RAID 5, RAID 10, CLONE, JBOD, Single Disk

• Hardware RAID: Yes

• RAID Manager Software: Included (multiple language support)

Connectivity

• Interface: USB 3.1 Gen1 Type‑C × 1 (5 Gbps)

• Power: DC IN 12 V (90 W supply)

Performance

• Max Read Speed: ~210 MB/s (RAID 0)

• Max Write Speed: ~190 MB/s (RAID 0)

 Physical & Environmental

• Dimensions: 227 × 225 × 136 mm

• Weight: ~2.1 kg (net)

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

• Operating Temp: 5 °C – 40 °C

• Humidity: 5 % – 95 % RH

Compatibility

• Supported OS: Windows, macOS, Linux (varies by configuration)

• File Systems (via host OS): NTFS, APFS, FAT32, EXT4, exFAT, etc.

Included in Box

• Enclosure

• Power adapter & cord

• USB‑C to USB‑A cable

• Screws & quick guide

TerraMaster D5‑300 Features 

• Five Drive Bays Supporting HDDs and SSDs
  The TerraMaster D5‑300 features five drive bays that can accommodate both 3.5-inch HDDs and 2.5-inch SSDs, allowing users to create a storage array tailored to their needs. This flexibility means you can combine high-capacity hard drives for bulk storage with fast SSDs for performance-intensive tasks, making it suitable for both media storage and editing workflows.

• Multiple RAID Modes
  This enclosure supports a wide range of RAID configurations, including RAID 0, RAID 1, RAID 5, RAID 10, JBOD, Single Disk, and Clone. RAID 0 increases speed by striping data across multiple drives, RAID 1 provides data redundancy through mirroring, and RAID 5 offers a balance of performance and fault tolerance. This variety allows users to prioritize speed, redundancy, or storage capacity based on their requirements.

• USB 3.1 Gen1 Type-C Connectivity
  The D5‑300 connects to your computer using a USB 3.1 Gen1 Type-C interface, which supports data transfer speeds up to 5 Gbps. This ensures fast access to large files, such as 4K videos or large datasets, while remaining compatible with older USB ports through included adapters or cables.

• Hardware RAID Management
  The enclosure includes a built-in hardware RAID controller, meaning all RAID operations are handled internally without relying on the host computer’s processing power. This reduces system load, simplifies setup, and ensures consistent RAID performance across different operating systems.

• Durable Aluminum Chassis with Smart Cooling Fans
  The D5‑300 has a robust aluminum chassis that not only provides structural strength but also helps dissipate heat. It includes two smart 80 mm fans that automatically adjust their speed based on temperature, keeping the drives cool while maintaining quiet operation, which is ideal for office or studio environments.

• Cross-Platform Compatibility
  The enclosure is compatible with Windows, macOS, and Linux systems. Users can format drives in standard file systems supported by their operating system, making it easy to use the D5‑300 with multiple computers or in mixed environments.

• RAID Management Software
  TerraMaster provides RAID management software that allows users to configure arrays, monitor drive health, and manage storage efficiently through a graphical interface. This feature is particularly helpful for users who are not familiar with manual RAID setup, as it simplifies the process.

• Diskless Design
  The D5‑300 is sold as a diskless unit, meaning it does not come with pre-installed drives. This allows users to select drives based on desired capacity, speed, or budget, giving full control over the storage setup.

• High Storage Capacity
  Depending on the drives installed and RAID configuration, the D5‑300 can support up to 100 TB of raw storage. This large capacity makes it suitable for video editors, photographers, and businesses that need reliable and high-volume storage for backups or media archives.

Application Use Cases

1. Video and Multimedia Editing

The D5‑300 is ideal for video editors, photographers, and content creators who work with large files like 4K/8K videos or high-resolution images. Its multiple RAID options allow for high-speed data access (RAID 0) or secure storage with redundancy (RAID 5/RAID 10), ensuring smooth editing and fast rendering without interruptions.

2. Large Data Backups

With support for up to 100 TB of raw storage, the enclosure is perfect for businesses or individuals needing to back up large amounts of data. RAID modes like RAID 1 or RAID 5 provide data protection in case of drive failure, making it a reliable choice for archival and backup purposes.

3. Small Office/Home Office (SOHO) Storage

Small businesses or home offices can use the D5‑300 to centralize files for multiple users. Its cross-platform compatibility allows Windows, macOS, and Linux computers to access shared data, while the RAID setup ensures that critical business data is protected.

4. Media Server or NAS Companion

Although not a network-attached storage (NAS) device itself, the D5‑300 can be connected to a computer acting as a media server. This allows storage of large libraries of movies, music, or documents, which can then be streamed or shared over a network.

5. Project and Workstation Storage Expansion

For professional workstations that require additional storage for high-demand projects, the D5‑300 offers a cost-effective solution. Its diskless design allows users to choose high-performance SSDs for active projects while keeping HDDs for archiving completed work.

6. Data Cloning and Disk Duplication

The enclosure’s CLONE function enables one-click duplication of a disk, making it useful for quickly replicating drives for distribution, backup, or testing purposes.