4" 12VDC Cooling Fan

DC axial cooling blower exhaust rotary fan these fans are designed for force-air cooling of electronic devices. The purpose of the ac fan, as well as any other cooling fan, is to protect the electronic devices in the system by keeping them at an optimal cooling temperature. The fan will generate cool air by spinning at variable rates, thus protecting against thermal variances that will undoubtedly harm the devices and will prevent premature failure