Full Details from Amazon.com : http://www.amazon.com/gp/product/B002OJTJIY?tag=onigi-20
Thermaltake Silent 1156 CPU Cooler
Supports Intel processor Socket LGA1156
2pcs ?8mm Heat Pipes provide the best performance
90mm PWM fan 800-1700 RPM decreases power consumption reduces acoustics noise and increases fan performance
Premium thermal grease provides higher thermal conductivity between CPU and cooler
Tool-less clip push-pin design for quick and easy installation