1.Low Noise Operation: 9 fan blades provide an excellent silent experience and great airflow.(Max. Airflow: 48 CFM, Fan Noise: 21dBA) 2.Tow Heatpipes: Tow heat pipes with exclusive direct contact technology provide fast heat transfer and maintain the excellent operation of CPU. 3.Direct Contact Technology: Direct touching copper base is adopted to fit CPU, as well as improving optimal contact area and thermal conductivity. 4.PWM fan delivers Low-Noise for automatic speed control and ultra-quiet operation for extreme CPU cooling performance. 5.Support Sockets: Intel 775/1150/1151/1155/1156; AMD: FM2+/FM2/FM1/AM4/AM3/AM2+/AM2.