QNAP TR-004 4-Bay USB-C DAS Hardware RAID (Diskless)

The QNAP TR-004 is a 4-bay direct attached storage enclosure that connects to computers via USB 3.2 Gen 1 Type-C, providing up to four bays of additional SATA storage with built-in hardware RAID. Unlike software-based RAID solutions that rely on host processing power, the TR-004's onboard RAID controller handles all parity calculations and data management independently, supporting RAID 0 for maximum speed, RAID 1 for mirroring, RAID 5 for a balance of capacity and redundancy, JBOD for combining drives into a single volume, and individual disk mode for treating each drive separately.

The enclosure accepts 3.5-inch SATA drives in tool-less, lockable trays that allow for straightforward drive installation and physical security. It ships with a USB Type-C to Type-A cable for broad compatibility across Windows, macOS, and Linux systems, and it can also serve as a storage expansion unit for compatible QNAP NAS devices. This dual-purpose flexibility makes the TR-004 a practical choice for users who need reliable backup storage, additional capacity for media libraries or project files, or a way to extend their existing NAS infrastructure without investing in a larger standalone unit.