TerraMaster D4 SSD 4x M.2 SSD NVMe Thunderbolt, USB-C 40 Gb/s do 32TB without SSDs

The TerraMaster D4 SSD is a very fast DAS designed for demanding multimedia and post-production applications using a 40 Gb/s Thunderbolt or USB port. When all four M.2 SSD ports are populated and the drives are configured in RAID-0, the system achieves speeds of up to 3,224 MB/s. When operating with a single drive, read speeds can reach 1,608 MB/s.

Whether you use multiple drives simultaneously or a single drive, the TerraMaster D4 SSD DAS significantly reduces the time required to complete almost all tasks in the post-production process. The DAS is fully compatible with Thunderbolt 3/4/5 and USB 4/3.2/3.1/3.0 protocols, offering exceptional cross-platform compatibility, making it ideal for a variety of applications.

Basic applications of TerraMaster D4 SSD

The TerraMaster D4 SSD DAS is specifically designed for multimedia creation and video production. It is fully compatible with Thunderbolt and USB4 protocols, providing high bandwidth of up to 40 Gb/s. It is also an ideal solution for expanding external storage for Mac computers and can be used as a Mac OS boot drive. Gamers can install large computer games directly on the TerraMaster D4 SSD, ensuring smooth performance indistinguishable from running on a local drive, with truly zero latency.

Thunderbolt / USB 4 Protocol

The TerraMaster D4 SSD DAS uses the Thunderbolt / USB4 protocol, achieving data transfer bandwidth of up to 40 Gb/s. When equipped with four M.2 SSDs, the actual read/write speed can reach 3257 MB/s (Samsung 990PRO 4 TB *4). Even with a single SSD installed, the TerraMaster D4 SSD still delivers a read speed of 1608 MB/s (Samsung 990 PRO 4 TB ×1). Whether you use multiple drives or just one, the TerraMaster D4 SSD offers exceptional performance, significantly reducing the time required to complete almost all tasks in the post-production process.

Test performed: Four Samsung 990 PRO 4 TB M.2 SSDs were installed in the D4 SSD and connected to a Mac mini equipped with an Apple M4 chip running version 15.3.2. The drives were configured in a RAID 0 array. Performance was evaluated using AJA System Test software, with a read speed of 3257 MB/s and a write speed of 3192 MB/s measured.

Fully compatible with various protocols

The TerraMasterD4 SSD is fully compatible with Thunderbolt 3/4/5 interfaces, ensuring lightning-fast data transfer and seamless collaboration.

It also supports all USB4/3.2/3.1/3.0 protocols, offering exceptional cross-platform compatibility. This broad compatibility allows the TerraMaster D4 SSD to seamlessly integrate with various applications, meeting the diverse needs of different users.

Note: Some Windows computers equipped with Thunderbolt 3 interfaces may not fully support the USB4 protocol, which may cause the D4 SSD to not be recognized when connected to such ports. To resolve this issue, it is recommended to connect the D4 SSD to another USB port on the computer.

Huge storage capacity up to 32 TB

The TerraMaster D4 SSD DAS offers powerful storage expansion capabilities, supporting up to four M.2 SSDs. With a maximum capacity of 8 TB per drive (higher capacities pending verification), it can provide a massive storage space of up to 32 TB, meeting various large-scale data storage needs. It is worth noting that the TerraMaster D4 SSD DAS itself does not offer RAID functionality and only supports single-drive mode. If users wish to configure a RAID array to enhance storage performance and security, they can do so using third-party RAID management software.

Compact, quiet, and home-friendly

The TerraMaster D4 SSD uses M.2 NVMe SSDs as storage media, featuring a compact size and lightweight design for easy portability. The innovative active cooling design with top-to-bottom airflow and a quiet fan ensures low temperatures and minimal noise even under full load. In standby mode, the noise level remains below 19 dB(A), creating a comfortable and quiet environment in your home.

Intelligent cooling and quiet operation

Thanks to the second-generation DAS Terramaster D4 SSD's intelligent temperature-controlled fan system, it provides efficient cooling while maintaining ultra-quiet operation, which helps extend the life of both the device and the hard drives. Four internal temperature sensors enable precise temperature monitoring and adaptive fan speed control, maintaining optimal drive temperature. The optimized airflow design reduces component resonance and noise, even under full load, ensuring quiet operation.

Technical specifications

• Storage: number of drive bays: 4
• Supported drive types: PCIe NVMe M.2 2280 SSD
• File system: NTFS, APFS, Mac OS, FAT32, EXT4, exFAT
• Maximum internal capacity: 32 TB (8 TB SSD * 4)
• Supported array formats: RAID, Single Disc,
• Interface: Thunderbolt, USB-C, USB4 40 Gb/s
• Read/write speed (max.): 3257 MB/s (Samsung 990 Pro 4 TB*4_RAID0); 1600 MB/s (Samsung 990 Pro 4 TB*1)
• Write speed (max.): 3192 MB/s (Samsung 990 Pro 4 TB*4_RAID0); 1500 MB/s (Samsung 990 Pro 4 TB*1)
• Dimensions (H x W x D): 138 x 60 x 140 mm
• Net weight: 392 g, gross weight: 891 g
• System fan: 50 x 50 x 10 mm, 2 pcs.
• Fan mode: Intelligent
• Noise level: 19.0 dB(A) (using M.2 SSDs in standby mode; noise in test environment: 17.3 dB(A); test distance: 1 m)
• Power supply: 24 W
• AC input voltage: 100 V to 240 V AC
• Power consumption: 15.0 W (Seagate 2 TB M.2 SSDs under full load in read/write state), 6.0 W (Seagate 2 TB M.2 SSDs under full load in hibernation state)
• Supported operating systems: Mac OS, Windows 11 (version 24H2 or later)
• Certifications: CE, FCC, CCC, KC
• RoHS compliant
• Package contents: Main unit (x1), USB4 C to C cable 0.8 m (x1), Quick installation guide (x1), Power adapter (x1), Screws (several pieces), Limited warranty information (x1)