QNAP TR-004U 4x SATA USB 1U Expansion Unit for NAS Server

The QNAP TR-004U is a 1U rack expansion unit with four SATA drive bays and a USB connection for expanding the storage capacity of NAS or server systems. The unit supports hardware or software RAID and provides Individual, JBOD, RAID 0, RAID 1, RAID 5 and RAID 10 modes of operation. The unit supports hot-swap drives, provides stable operation with efficient cooling and is designed for mounting in a 19-inch rack cabinet. The TR-004U can operate as a NAS expansion unit or as a standalone DAS for Windows, macOS or Linux systems, making it suitable for enterprise and server environments.

Specifications
Model: TR-004U
Device Type: USB RAID Expansion Unit / DAS, 1U rack
Number of disk slots: 4
Supported drives: 3.5" or 2.5" SATA HDD/SSD (SATA 6Gb/s)
Interface: 1 × USB 3.2 Gen 1 Type-C (5Gb/s)
RAID modes: Individual, JBOD, RAID 0, RAID 1, RAID 5, RAID 10
RAID control: hardware or software RAID
RAID controller: embedded microprocessor
Hot-swap: yes
1U rackmount (19")
Power supply: built-in power supply (AC 100-240 V)
Cooling: system fans with operation control
Compatibility: Windows, macOS, Linux, QNAP NAS
Supported file systems: EXT3, EXT4, NTFS, FAT32, HFS+, exFAT (licensed)
Dimensions: approx. 44 × 482.6 × 365 mm
Weight (net): approx. 4.5 kg
Colour: black