Dark Rock Pro 4 offers immense cooling performance of 250W TDP and virtually inaudible operation. Excellent for overclocked systems and demanding workstations. Two silent Wings PWM fans feature advanced fluid-dynamic bearings and smooth 6-Pole motors funnel-shaped frame of the front silent Wings 3 fan provides extremely high Air pressure achieves only 24.3Db(a) at maximum fan speed seven high-performance copper heat pipes provide Maximal heat conductance wave-contoured cooling fins for increased air circulation cutouts on the cooling fins enhance the RAM compatibility special Black coating with ceramic particles enables perfect heat transfer supports an additional 120mm fan; clips are included in scope of delivery easily install able Black Installation Kit can be mounted from above elegant, brushed aluminum top cover with diamond Cut finish 3-year manufacturer. design and quality control ,Socket compatibility AMD: AM5 / AM4 Socket compatibility Intel: 1700 / 1200 / 2066 / 1150 / 1151 / 1155 / 2011(-3) Square ILM.