SpecificationsMfr Part Number: SILVER ARROW IB-E Features:8x 6mm sintered heat-pipes effectively takes away excessive heat from the CPU when overclocked, Nickel Plated heat-pipes, slower Oxidation and deterioration of the heat-pipes, provides longer period of Thermal conductivityDouble fin design, each side with 154 x 120mm heat dissipation area, can be used with 14 or 15 cm fan (fan clips included)Special Arrow fin design, which allows cool air to pass through and take heat away rapidly, effectively provide cooling for the cpuSupport Multiple-PlatformsIncluding two TY-141 Ultra low noise PWM fans and PWM Y-Cable, with the compatibility of up to 3 fans maximumCPU Socket:Intel Socket: LGA 2011/ 1366/ 1156/ 1155/ 1150/ 775AMD Socket: FM2/ FM1/ AM3+/ AM3/ AM2+/ AM2TY-141 Fan:Fan Speed: 900 ~ 1300 RPM (PWM controlled)Fan Noise: 21~25 dBAAir Flow: 28.32~73.64CFMConnector: 4 Pin (PWM Fan Connector)Dimensions (WxLxH): 26.5 x 152.0 x 140.0 mmWeight: 170.0 gHeatsink:Heatpipes: 8x 6mm HeatpipesCopper Base: C1100 Pure Copper Nickel PlatedDimensions (WxLxH): 103.0 x 154.0 x 163.0 mmWeight: 750.0 g