S1255 Specifications Dimension(WxDxH) 480mmx451mmx44.5 mm Sheet Metal 1.0mm SECC Mother Board Support 12"x10.5" and below Power Supply Support A1302406 A1352406 Indicators Power\ HDD\ LAN Front USB USB 2.0x1 System Cooling Fans B4028*2+B4020*2 Expansion Slots 1 slot Drive Bays 2x3.5" HDD bays Safety Design of anti-EMI