Yeah Racing Tornado High Speed Ball Bearing Fan 25mm for ESC #YA-0201 For: 1/10 ESC, Material: Plastic Dimensions: 25 x 25 x 10mm, Bearing: Dual Ball Bearing, Operating: Voltage 5V ~ 7.2V Start-up Voltage: 3V, Power: 1.40W Fan Speed: 15000 R.P.M (20%) at 25, after 5~10 min. rotating, Max Air Flow: 5.13CFM. Current: 0.28A, Weight: 7.0g, Connector: JST