Anti-dust mesh design on the front ventilation Rugged edges M/B Type: Micro ATX / ATX Color: Black Silver Multi Port: USB2.0 x 2 / HD Audio Material: 0.6mm SECC Cooling Fan: Front 120mm (optional); Rear 120mm (optional) Dimension: 460 x 190 x 450mm (LxWxH) Drive Bay: 5.25" x 4; 3.5" x 7