Specification:

Interface USB 3.0 / e-SATA
Data Transfer Rate USB 3.0 up to 5 Gbps (USB 2 0 compatible)
e-SATA up to 3 Gbps
Maximum HDD Capacity 2 TB X 4
RAID Levels RAID 0, 1, 3, 5 & 10
Multi-function LED 2-color LED for power or sleep mode
Interface link LED display
Rebuild LED display
HDD error LED
RAID mode LED display
3 levels of speed
Manual /auto fan control
Colour Black
Descriptions 4 - BAY 3.5" RAID Enclosure
HDD 3.5" SATA I / SATA II HDD
4HDDs of same capacity / model / brand strongly recommended
Case Material Aluminium
Dimensions 215(D) x 125(W) x 166(H) mm
Weight 1.8 Kgs / Unit (without hard drives)
System Requirements Windows XP /Windows Vista(32/64 bit) /Windows 7(32/64 bit)
(with MBR enabled, supports total capacity up to 2TB)
Windows Vista(32/64 bit)
(with GPT enabled. supports total capacity more than 2TB)
Macintosh 10.4x or later (USB 2.0 Supported)
Power adapter Power adapter AC input 100V~240V DC output +12V/5A