Model # K45-P4 Factory # 7A342-045 Dimension (DxWxH) 18 x 7.75 x 16.25 Inches Drive Bays 3 + 3 Motherboard ATX, Micro ATX Expansion Slots 7 Full Size Switching Power Supply ATX12V 300W Intel & AMD Listed Cooling Fan Rear 8cm Fan Included Front 8cm Fan Optional USB Ports Description *Ideal for P3, P4 & AMD System *Desktop/Tower Convertible *Spacious Internal Space *High Efficiency Power Supply *Excellent Cooling *Guide Rails for Drives |