Features:

4U rackmount design
6x hot-swappable SATA slim drive bays with SATA interface backplane
Hot-swappable HDD tray with special designed power-off and lock mechanism.
3 x 5.25" drive bays, 1 x 3.5 " drive bay
Four ball-bearing cooling fans for better ventilation
Support ATX motherboard, size up to 12" x 10"
Lockable front panel door
Rubber-buffered card slot hold-down clamp
Smooth border prevent lacerating your skin

Specifications:

Construction: Heavy duty 1.2mm steel ,Meets FCC/CE Class
Drive Bay: 6 x hot-swappable SATA slim drive bays, 3 x 5.25" bays, 1 x 3.5 " bay
Cooling Fan: 4 x 80mm top fans, 2 x 60mm optional rear fans
Switch: Power ON/OFF x 1, System reset x 1, Keyboard lock x 1
Options: support ATX motherboard up to 12" x 10"
Expansion Slots: 7
Power Supply Options: ATX
Color Option: Grey / Beige / Black
Dimensions ( W x D x H ): 19" x 21.5" x 7" (482mm x 545mm x 177mm)
Packing:Double boxes, 28" x 22" x 12"
Weight (without hard drive): 16.4 kg/36 lb (NET) 18.2 kg/40 lb (GROSS)
Environment Temperature:0/40 °C, 32/104 °F (Operating) -20/60 °C, -4/140 °F (Non-Operating)
Relative Humidity: 5% to 95%,non-condensing