•From Factor:Slim\MICRO•power supply: P4 Power•Front:ABS•Chassis:SECC or SGCC/0.4-0.5mm•Fan:Rear 80mm*2•Drive Bay:5.25”*1 3.5”*1(Ext) 3.5”*1(Int)•Expansion Slots:4 Slots•Net :2.7Kg•Gross :3.6Kg•Q’ty of 20’ :880 PCS•Q’ty of 40’ :2160 PCS•Chassis Dimension:388*145*350mm•Carton Box:400*185*440mm