Recommend for Intel® Core™ X-series Processors, Socket FCLGA 2066, Intel® Xeon® Processor, Socket FCLGA 2011 Square ILM, Aluminum Extruded Radial Fin Heat Sink with Copper Inserted, 9225 top-down blowing Fan with PWM Function, Active Cooler for 3U Server & Up, Support CPU Power up to 165Watts Dissipation.