80mm 12V Brushless DC Cooling Fan 80x80x25.4mm High Speed Sleeve Bearing Dynatron (Top Motor) DF1208SH or DF128025SH 80-mm ( 8-cm ) System Fan FN-8025-xx-SH-DY 1.      2.      3.      4. 5.      6.      7.      8. Power Connector Options: 1. DF128025SH (DF1208SH) + 3-pin & 4-pin Combo to Power Supply or Mother Board 2. DF128025SH (DF1208SH) + 4-pin to Power Supply Connection 3. DF128025SH (DF1208SH) + 3-pin to Mother Board Connection 4. DF128025SH (DF1208SH) + 3-pin 2.54mm-pitch SL Crimp Housing 5. DF128025SH (DF1208SH) + 3-conductor bare wires 6. DF128025SH (DF1208SH) + 2-conductor bare wires 7. DF128025SH (DF1208SH) + 2-pin #3.96 Plug 8. DF128025SH (DF1208SH) + 4-pin to Power Supply & 3-pin Data Wire ( subject to inventory ) Size: 80x80x25.4mm Bearing System: Sleeve Bearing Rated Voltage: 12V Input Current: 0.25A Input Power: 3.00W Speed: 2900 +/- 10% RPM Air Flow: 31.96 CFM Static Pressure: 3.16 mm-H2O Noise Level: 34.14 dBA click here for Dynatron / Top-Motor Item Numbers Comparison Chart