80mm 12V Brushless DC Cooling Fan 80x80x25.4mm Low Speed Sleeve Bearing Dynatron (Top Motor) DF1208SL or DF128025SL 80-mm ( 8-cm ) System Fan FN-8025-3C-SL-DY Size: 80x80x25.4mm Bearing System: Sleeve Bearing Rated Voltage: 12V Input Current: 0.14A Input Power: 1.68W Speed: 2200 +/- 10% RPM Air Flow: 23.12 CFM Static Pressure: 1.82 mm-H2O Noise Level: 27.07 dBA click here for Dynatron / Top-Motor Item Numbers Comparison Chart