cooler fan 80*80*38: 1.motor protection 2.high static pressure 3.low noise and long life cooler fan 80*80*38:General Specifications:Frame: plastic(UL94v-0)Impeller: plastic(UL94v-0)Bearing type: Sleeve Bearing and Dual Ball BearingLeadwire: UL1571AWG#28 or Equivalent (+):Red(-):BlackMotor: Impedance Protected and Reverse Polarity ProtectedCertification: ISO9000, UL ,CE, RoHS, TUV Expected Life:1. ...