Cooler Master CHD-00009-01-GP Socket 939/940/AM2 Aluminum Heat Sink & Fan to 5200+ Cooler Master CHD-00009-01-GP Socket 939/940/AM2 Heat Sink Fan to 5200+ General Features: Aluminum heat sink 70 (2.75-inch) x 70 x 15 mm fan FAn bearing type: Rifle Interface material: G560 Fan Speed: 2900 RPM Fan Airflow: 20.7 CFM Fan Life: 40000 hours Voltage Rating: 12V Noise Level: 30.75 dBA Clip fastener type Supports Socket 939/940/AM2 Athlon 64 CPUs up to 4000+ and Athlon 64 X2 CPUs up to 5200+