AeroCool Xfire CPU Cooler Retail Aerocool X-Fire Heat Sink Fan Unit General Features: Nickel-plated copper base Aluminum heat sink with 50 fins 120 x 120 x 25 mm fan (4.72-inches) Sleeve bearing fan type Dual 6 mm heat pipes Quad white LEDs 1500 RPM speed ( 10%) Air flow: 52.25 CFM 23.53 dBA noise level Designed for LGA775 (Pentium 4) or 754/939/940/AM2/AM2+ (Athlon 64/Sempron) Power Specifications: