INTEL P4 PRESCOTT 3.2 AND UP INTEL P4 NORTHWOOD 3.2 AND UP INTEL P4 PRESCOTT FMB 1.5 SPECIFICATION 　Heatsink Dimension: 　83x69x37 mm 　Heatsink Material: 　100% MADE CU 　Fan Dimension: 　70x70x15 mm 　Fan Speed:　 　4200+/-10% RPM 　Fan Airflow: 　33.5 CFM 　Fan Noise level: 　39.0 dBA 　Fan Rated Voltage: 　12.0 VDC 　Fan Current: 　0.35 A 　Fan Bearing type: 　One Ball and One Sleeve 　Fan life time: 　50,000 H 　Safety Approvals: 　CE UL CUL 　Net Weight: 　425 G