6500RPM Cooling Fan Vovomay Replacement 4-pin Connector for Antminer Bitmain S7 S9

Specifications Size approx 120 120 37 mmVoltage 12 V Blast Capacity 267CFMCurrent 1 85ARotate Speed 6500RPM r min Noise Level 70 5DBAFan Interface board 4 pin interfaceBearing High precision double ball bearing Features Support speed measurement PWM temperature control No maintenance of double ball bearings long service life with adequate cooling air volume and air pressure Suitable for heat dissipation HP server radiator heat dissipation transformation water cooling auxiliary heat dissipation switching power dissipation high reliable server application site Package Included 1 x Cooling Fan