Cooler Dimension 73.8x73.8x56mm Weight 306g Fan Dimension 70x70x10mm Bearing System Ball Bearing Syetem Rated Voltage DC12V Speed(RPM) 3800 Noise Level(dBA) 32.5 Air Delivery(CFM) 26.2 Clip Attach Force(LBS) 19.5±3 Thermal Resistance(°C/W) 0.5 TI-S7740K

Cooler Dimension 73.8x73.8x61mm Weight 313g Fan Dimension 70x70x15mm Bearing System Ball Bearing Syetem Rated Voltage DC12V Speed(RPM) 3800 Noise Level(dBA) 34 Air Delivery(CFM) 32.73 Clip Attach Force(LBS) 19.5±3 Thermal Resistance(°C/W) 0.48 TI-S7740L

Cooler Dimension 73.8x73.8x76.8mm Weight 351.5g Fan Dimension 70x70x25mm Bearing System Two Ball Bearing Syetem Rated Voltage DC12V Speed(RPM) 5000 Noise Level(dBA) 42 Air Delivery(CFM) 41.14 Clip Attach Force(LBS) 19.5±3 Thermal Resistance(°C/W) 0.42 TI-S7740N