12 Volt DC 50x50x15mm Brushless Tubeaxial Fan Specifications Voltage: 12 volts DC Size (W x H x D): 50 mm X 50 mm X 15 mm Air flow: 9.9 CFM Bearing type: Ball Current: 70 mA Power: 0.84 watts RPM: 3500 Agency approvals: UL, CUL, CE Noise: 52 dBA Connections: (3) 12" wires (one for speed sensor)