B00BCO9AG8 For Sunon MB40201VX-000U-G99 40mmx20mm Vapo Bearing cooling Fan 3Pin 40mm x 40mm x 20mm,12 VDC 8200 R.P.M. (Revolutions per minute) 10.8 CFM (Cubic feet per minute) 27.5 dB-A Power Connector / Function = 3pin, Speed Sensor