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Form-factor 1U 19-inch rackmount chassis
RAID processor 400MHz storage I/O processor
RAID level 0, 1, 0+1, 3, 5 and JBOD
No. of channels (host+drive) 1+4
Host bus interface  eSATA x 1, USB 3.0 x 1, 1394b x 2 
Drive bus interface  SATA II (Up to 3.0Gbps)
Data transfer rate

Up to 3Gbps (eSATA)
Up to 5Gbps (USB 3.0)
Up to 800Mbps (1394b)

Hot-swap drive trays  Four(4) 3.5-inch Disk trays
Cooling fan 1
Management Interface Locally RAID Level Switch / In-Band GUI
Audible alarm Yes
Failed drive indicators Yes
Failed drive auto rebuild Yes
Environment monitor Yes
Auto spare support Yes
Power supply  220W with PFC
AC 90V ~ 264V Full Range
3A~5A, 50~60Hz
Relative Humidity 10%~85% Non-condensing
Operating Temp. 10°C ~ 40°C (50°F ~ 104°F)
Physical Dimensions 446.4(W) x 498(D) x 44(H) mm
Weight 6.8kg (without HDD)