SpecificationsMfr Part Number: CNPS9900LEDFeatures: Does not generate noise or vibration in Silent ModePure copper heatsink with component layout optimized for maximum cooling efficiencyInnovative, patented, and curved heatpipe design for a heat transfer capacity of upto six heatpipes with the use of just threeUltra slim fins (0.2mm) for minimized weight and reduced airflow resistanceCompatible with all Intel Socket 1366/775 and all AMD Socket AM2+/AM2/754/939/940 based Single, Dual, and Quad Core CPUsSupports all single and dual core CPUs of Intel"s Socket 775/478 and all single and dual core CPUs of AMD"s Socket AM2/754/939/940Ultra quiet 120mm PWM LED fan for automatic fan speed control according to the CPU"s temperatureCompatible CPU: Intel: Socket 1366: Core i7Socket 775: Core 2 Quad, Core 2 Extreme, Core 2 Duo, Pentium D, Pentium 4, Celeron DAMD: Socket AM3: Phenom IISocket AM2+: Sempron, Athlon 64, Athlon 64 X2 Dual Core, Athlon 64 FX, Phenom, Phenom II Socket AM2: Athlon 64 FX, Athlon 64 X2 Dual Core, Athlon 64, SempronSocket 940: Dual-Core Opteron, Opteron, Athlon 64 FXSocket 939: Opteron, Dual Core Opteron, Athlon 64 FX, Athlon X2 Dual Core, Athlon 64Socket 754: Athlon 64, SempronFan: Speed: 1000 ~ 2000rpm ± 10%Bearing Type: 2x Ball BearingBase Material: Pure CopperDissipation Area: 5,402 cm2Noise Level: 19.5 dBA ~ 38.0 dBA ± 10%Dimension (WxLxH): 131 x 94 x 152 mmWeight: 730 g