This is System Blower CPU Case Slot Fan Cooler for MAC PC. This turbine system exhaust slot fan cooler is designed specifically to maintain a low temperature inside your PC system and Extend your system life span.                                    Features            Exhaust the harmful hot air from inside the caseExtend your system life spanFriendly and easy installation design， takes up only one PCI or ISA slotHigh air flow， high static pressureHigh quality thermal performanceCan be used for cooling video cards (mount it next to your Video Card)Classified: A+ classRequirements:Available PCI I/O slot4-pin power cableCFM:6                                                                                                Package Includes            1 x System Blower CPU Case Slot Fan Cooler for MAC PC