The Antec KÜHLER H2O 950 provides cooling for your CPU in a quick, easy-to-install package. Unlike traditional liquid cooling systems, this self-contained unit comes prefilled & requires no maintenance. In addition to easy installation, dual powerful PWM fans pushes air through directional blades & channels it for optimal cooling. The dual 120 mm Pulse Width Modulation (PWM) fans & extra large pump ensure quiet, efficient cooling, while the double wide radiator is equipped to cool any high performance CPU on the market. An integrated fan, pump, & radiator allows coolant to circulate through the radiator at a higher velocity which in turn increases cooling performance. Take your PC's Quiet Computing to the next level with liquid cooling performance at a price that rivals aftermarket air coolers.