Configurations :5.25 Inch Bays1 x 5.25 Inch Normal DVD Writer / ODD Bay3.5 Inch Bays :1 x 3.5 Inch Normal Hard Disk Drive BayMotherboard Form Factors :ATOM based Mini-ITX MotherboardsFront USB Ports :2 x USB 2.0 PortsFront Audio Ports :HD Audio MIC and Speaker OutCooling Fans :1 x 4cm Rear Cooling FanExtra Cooling Fan Provision :1 x 4cm Front Cooling Fan ProvisionPower Supply :iBall STX 180-153 (24pin-150W)