Ceramica 12Volt 40mm X 20mm Computer Equipment & Power Supply Cooling Fan. Part no. FAN4020C12M-II, FAN4020C12M.Suits some computer equipment and cards.40mm X 40mm X 20mm.12Volt, 1.44Watt DC. Ceramic bearings.7000RPM, Noise 27dB, Airflow 9.89cfm.Comes with 3 pin motherboard plug for connection to equipment.