TERRAMASTER D4-320U (4xHDD)

The TerraMaster D4-320U is a four-bay DAS enclosure for SATA HDDs and SSDs, designed to expand storage on servers, workstations and NAS devices. Its USB 3.2 Gen 2 Type-C interface offers up to 10 Gb/s, and in tests with four drives it reached read and write speeds of up to 1016 MB/s. The enclosure supports up to 96 TB of capacity and works with Windows, macOS, Linux, Proxmox, TrueNAS and Unraid. At a depth of just 241 mm, it also fits into compact server racks.

The bays accept 3.5-inch SATA HDDs as well as 2.5-inch HDDs and SSDs, so users can choose the drives that suit their needs. Plug and Play operation means no driver installation is required, and USB-C and USB-A-to-USB-C cables are included. Compatibility with USB 3.0 through 3.2 and Thunderbolt 3 and 4 makes integration into existing setups straightforward.

Three temperature-controlled fans keep the drives cool, while the operating noise of around 26.7 dB(A) makes the unit suitable for office environments.