This PC case fan is an add-in cooling fan designed to fit most computers. It can be used to circulate cool air into the case or exhaust warm air out, preventing problems due to overheating components. A quiet running brushless ball bearing DC motor coupled with a high efficiency blade design is capable of moving 48 CFM (cubic feet per minute) of air. Power is supplied to the fan using a power tap that is connected to the large LP4 power connector on a PC's power supply.
Ball bearings in the motor provide dependable operation and a long service life.