Add additional chassis cooling with a 8mm ball bearing fan This versatile PC case fan is designed to fit a broad range of computer case designs, to circulate cool air into the case, or exhaust warm air out - preventing problems due to overheating components. A quiet cooling solution, the near silent 8cm fan features a brushless ball bearing design coupled with a high-efficiency blade layout, capable of moving 37 CFM of air. This broadly compatible PC cooling solution can be powered through a simple LP4 connection to the computer power supply. The StarTech.com Advantage - A dual ball bearing design ensures reliability and longer life - Backed by a StarTech.com 2-year warranty and free lifetime technical support