Brnad:ADDASize:120 * 120 * 25mmModel : AD1212HB-A71GLBearing Type :Dual ball bearingSpeed:2200 rpmAir volume :87.870 CFMNoise:38dBARated voltage:12VCurrent:0.37AFan connector :2pinMaintain the bestContinuous operationTime180,000 hoursFeatureMaintenance- double ball bearing , long life, With sufficient cooling air volume and pressure100% genuine , disguising ! Fake a compensable 10,