AeroCool Dominator Universal HeatPipe Cooler for K8 and LGA775 Aerocool Dominator Heat Sink Fan Unit General Features: Copper base Aluminum heat sink with 58 fins 140 x 140 x 20 mm fan (5.51-inches) Sleeve bearing fan type Three (3) 8 mm heat pipes 1200 RPM speed ( 10%) Air flow: 68.37 CFM 20.87 dBA noise level Designed for LGA775 (Pentium 4, up to 3.8 GHz) and K8-series (Athlon 64) processors Power Specifications: