Dimension 210(W)*530(D)*480(H)Available Mother Board AT / ATX / Micro-ATXDrive Bay : 5.25"(external) 43.5"(external) 23.5"(internal) 5Material Thickness 1.0 mmExpansion slots 7I/O INTERFACE(Optional) USB / AUDIO / IEEE1394Cooling Fan(Optional): FRONT : 1*12CMREAR : 1*12CMTOP : 1*8CMSIDE : 2*8/9CMPower supply type PS2 ATX / MINI REDUNDANTMeasurement/CTN 3.34'NET WEIGHT 13 KGSGROSS WEIGHT 14.5 KGS20 foot container loading 300 PCS40 foot container loading 600 PCS