Fan 12CM best FFB1212EHE 120x120x38mm super large volume 3A violence 200CFM 3 linesDimension: 120x120x38mmFan speed: 4000-10%RPMBearing type: double ball bearingService life: 50,000 hours (25 °, relative humidity of 45~85% environment)Fan noise: 59dBAFan air volume: 200.30CFMRated voltage: 12V 3ASpeed monitoring: supportFan cable length: 30CMSuper durable metal cavity + dual ball bearings, suitable extreme heat or server use.Buyers took the time to explain what fans want interfaces, fan does not in itself with the interface.Please note: the fan as a special fan, very violent, wind strong, loud, buyers think twice bee you shoot.