Dimensions40x40x10mm(That is,4010)BearingsMagnetic levitation motorWorking voltage4.5V-13.8VElectricStream 0.15A1.8WTransferSpeed 8500rpmWindVolume 9.5CFMNoiseAudio32dbaFrame materialsGlass fiber reinced plastics,PBTShell,PABlade,Environmental certificationSpecialPointBecause a special good bearing, have have the same speed of air flow, velocity. Is the first magnetic levitation motor with double ball bearing fan!Pick upKou2Wire,Cord length: 15CMStandard cable length