Size: 120 x 120 x 38mm Air Flow: 120 CFM, 3.40 m3/min Air Pressure: 9.00 mmH20, 0.354" H20 Speed: 2900 RPM Noise: 44 dBA Voltage: 12V DC (4 to 13.2V DC) Power: 0.46 amp, 5.52W 3-pin connector Your mother header must provide enough power, in this case 0.46A/5.52w of power, in order to fully power up this fan. If you need this fan to be tail 4+3pin version which is listed separately on . The 3-pin connector plugs on the motherboard and the 4-pin molex will connect to the power supply to supply enough power to the fan. You can always connect the 3-pin connector to a fan controller but always make sure that the fan controller has enough power through the 3-pin connector to fully power the fan. Search Lamptron Fan Controller.