Model: San Ace120Nominal power: DC12V1.9APower: 20W (Power 20W aluminum frame motor, full power)Wire: Four-pin - only then the two positive and negative pin can (also can access the governor)Bearing type:High precision double ball bearingsize:120 × 120 × 38mm highnoise:57 dBair flow:180.08 CFMNumber of blades:7 leaves (injection molding, PBT + 30% glass fiber + VO flame retardant)Fan frame: Aluminum alloyFan speed: 4800RPM