Startech 40mm 4 pin ball bearing fan uk overheating hardware can be a problem in most server rooms with startechcoms new lp4 replacement ball bearing fan you can avoid problems to workstations this 40mmx10mm pc computer cooling fan is a perfect addition or replacement pc fan for maintaining suitable operating temperatures within your computer case the pc fan can be powered through a simple lp4 connection to the pc power supply and offers a dual ball bearing design to ensure quiet