Features : Special fin design adequately ventilated the cooler more efficiency Uses 9.5cm fan in order to make the perfect heat dissipation Silent solution Tool-less clip, easy to install Supports IntelRCore 2 Duo Processor and IntelRCore 2 Quad processor Specifications: Overall dimensions: 95 x 95 x 67.7mm Fan dimensions: 95 x 95 x 25mm Heatsink material: aluminum Rated voltage: 12V Rated current: 0.24A Power consumption: 2.88W Rated speed: (add heatsink to fan) 2,800 +/- 10%rpm Rated speed: 2,600 +/- 10%rpm Airflow: 49.37cfm Static pressure: 0.1 InchH2O Noise level: <22.2dBA No. of pole: four pole Rotation direction: counter-clockwise Bearing type: ever lubricate bearing (long life bearing) Life time: (ambient temperature: 25 deg. C 40,000 hours