Recommend for Intel® Core™ X-series Processors, Socket FCLGA 2066, Intel® Xeon® Processor, Socket FCLGA 2011 Square ILM, Low-Noise 92x25mm PWM Fan, H.C.C.(Heatpipes Contact CPU)Technology, Active Cooler for 3U&Up and Workstation, Support CPU power up to 165 Watts heat dissipation.