Sanus CAFQ01-B1 3U Ultra Quiet Fan Black Sanus systems CAFQ01-B1 3U Ultra quiet fan - 12 V power cable - Sanus systems warranty 12 VDC Ultra quiet Cooling fan for keeping the rack equipment cool by moving out the hot air Works with Capt01 Multivolt power supply Activated automatically by the thermostat kit (optional) Comes with a 12 V power cable