Sunon KD1255PFB1 55mm x 10mm 3 pin High Speed Ball Bearing Fan Sunon Model KD1255PFB1 55mm x 55mm x 10mm Voltage: 12vdc Current: 0.16A Speed: 5700 RPM aIRFLOW: 15 CFM 13" LONG 3 wires ....ground, 12v, tach Connector: 3 pin Tach