Special features:ULTRA style heatsink fin array, with copper base, elevates heatsink"s overall quality. Large heatsink fin array, provides dissipating area of up to 150*125mm, make complete use of the airflow, with 140mm or 120mm fan. Heat-sink width of 55mm clears tall memory spreaders on LGA2011 platforms.Heat-sink fin stack shifted away from VGA to clear 1st PCI-E slot.Includes one Thermalright TY-147 PWM fan, Ultra low noise at 21 dBA at max rpm.Fan-clips are compatible with both 140mm and 120mm fan.