USB 3.0 RAID expansion unit that can be installed in a 4-disk Rack

The TR-004U USB 3.0 RAID expansion unit allows you to expand the capacity of your QNAP NAS and PC. The TR-004U can also be used as a DAS (Direct-Attached Storage) device, allowing direct access to content via USB connection. The TR-004U features four 3.5-inch SATA drive bays, multiple RAID configuration options, and USB 3.0 Type C connectivity to offer you a highly reliable and secure storage capacity expansion solution.

- USB 3.0 Type C port for faster data transfer.
- Supports up to four SATA drives for reliable read and write performance.
- Disk mode DIP switch to set RAID group to switch between Hardware control and Software control configurations.
- Lockable hard drive trays to prevent accidental drive removal.
- Users can configure RAID and monitor disk status with Storage & Snapshots Manager on QNAP NAS.
- Can be used to add storage to QNAP NAS, serve as hardware RAID storage and offer users cross-platform file sharing.

Specifications
- CPU: Micro processor with hardware RAID
- 4 2.5"/3.5" SATA 6 Gbps HDD/SSD drive bays
- Hot-swappable drives
- 1 USB 3.1 Gen 1 Type C port
- Size: 44mm x 439mm x 291mm
- Operating temperature: 0°C ~ 40°C
- Humidity: 5% ~ 95%
- Power supply: Open frame, 100 W, Input: 100 V ~ 240 V, 3.5 A, 50 Hz ~ 60 Hz
- 2 x 40 mm fans (12 V DC)
- Sound level: 20.8 dB(A)
- Kensington security slot