Delta Electronics AFB1212GHE-CF00 120x120x 38mm Cooling Fan, 240.96 CFM, 5200 RPM, 62 dBA, 2.45A (max 3.24A), 27.48 air pre., 3+4-pin power & TAC connector Delta AFB1212GHE-CF00 High Speed Fan, 120 x 120 x 38mm, dual ball bearing Air Flow: 240.96 (Mini. 212.115) CFM, 6.823 (Mini. 6.006) Cubic Meter/Minute Fan Speed: 5200 RPM, Noise: 62 (Max. 66) dBA, Air Pressure: 27.483 (Mini. 22.075) mmH2O, 1.082 (Mini. 0.869) In-H2O Input Voltage: 12VDC rated, 6 - 12.8VDC operating, Current: 2.45A (Max. 3.24A), 29.4W (Max. 38.88W) 3 pin 3-wire connector with speed sensor, plus 3 pin to 4 pin molex cable adapter so you can get power from power supply and connect the 3 pin (1 wire for speed monitoring) header to the motherboard. Make sure you purchase from Tech Gears 4 Me store in order to receive the Free Bonus of 4 rubber screws for quickly mounting the fan in seconds!