Dimensions Heat sink : 89.5x89.5x40mm (l x w x h) 12VDC Fan : 80x80x20mm Rated speed 4,800 RPM +/-10% Speed Control Type PWM controller Rated power 4.56 (5.52 Max.) W Noise level 46.5 (50.5 Max.) dBA Air flow 53.34~59.27 CFM Current 0.38 (0.46 Max) A Connector 4 pin connector Life hours 70,000 hours Application Intel: Pentium 4 ~ 3.6 GHz (LGA-775 Prescott) Celeron D ~ 3.2 GHz (351) Core 2 Due 2.93GHz(X6800) Thermal resistance 0.3167°C/W Thermal type