The StarTech.com 8cm x 8cm x 2.5cm (3 1/8 x 3 1/8 x 1) Dual Ball Bearing 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 32 CFM (cubic feet per minute) of air. Power is supplied to the fan using a 3-lead TX3 connector that plugs into the motherboard and allows the system to monitor fan speed and operating status.

Ball Bearing in the cooling fan provides increased airflow, reliability and longer life

High efficiency fan-blade design is capable of moving 32 CFM