2011-2UHP5 is for 2U & Up Server Solution.Recommend for Intel® Xeon® Processor, Socket FCLGA 2011 Square ILM and Intel® Core™ X-series Processors, Socket FCLGA 2066;Using good quality 60x60x25 mm Side-Blow Fan with PWM Function&6800rpm, Copper Base with H.C.C. Technology;Embedded 5*Heat pipe to Contact CPU directly.Support CPU Power up to 165 Watts Heat