Evercool 70 x 70 x 15mm Ball Bearing Fan (3 Wires, 3-Pin Connector) Current: 0.26 AMP Wattage: 3.12 Watts Air Flow: 29.58 CFM Ball Bearing 3 Wires (+ Wire, - Wire, Speed Sensor Wire) Note: You can operate this fan without the use of "Speed Sensor Wire".