Delta Electronics AFC1212D 120x120x25mm Cooling Fan, 3400 RPM, 113.11 CFM, 46.5 dBA, 4-pin PWM connector Dimensions: 120 x 120 x 25mm, Speed: 3400 RPM, Noise: 46.5 dBA 12VDC rated, 10.2 - 13.8VDC operating voltage, 0.53A, 6.36W Air Flow: 113.11 CFM, 3.2 cubic meter per minute 0.43 inH2O, 107.1 Pa. Connector: 4-pin PWM with speed sensor