Feature Power supply: none Front USB port: with Audio/Microphone jack: with Driver bays: 5.25''X4+3.25"X6 Case size (LxWxH) (mm) : 380X175X408 Specification Net weight (Kg) : 4 Gross weight (Kg): 5 Structure: 30series Material of case body : 0.5mm/0.4mm SGCC Material of front panel: HIPS Packing Information Carton size (LxWxH) (mm) : 460X210X44.5 1X40''HQ: 1600