PartsCollection&reg; Delta Electronics AFB0812SH-F00 80x80x25mm Cooling Fan, 46.62 CFM, 40 dBA, 4000 RPM, 0.51 AMP, 3-pin TAC sensor Dimensions: 80 X 80 X 25mm Power: 12V DC (7.0 to 13.8) 0.51 Amp Speed: 4000 RPM, Max Air Flow: 46.62 CFM Noise Level: 40 dBA 3-pin TAC sensor