This is the Yeah Racing 30x30x10mm Tornado High Speed Cooling Fan in Pink color. This fan features dual ball bearings and is great for motors, ESC's and multiple other applications. This fan is capable of use with a 2S LiPo (8.4V), but no higher.

Specifications:
Dimensions: 30x30x10mm
Bearing: Dual Ball Bearing
Operating: Voltage 5V
Start-up Voltage: 3V
Power: 1.40W
Fan Speed: approx. 14,000 RPM
Max Air Flow: 5.501 CFM
Current: 0.28A
Weight: 9.0g
Connector: JST

Note: For the best performance, Yeah Racing recommends you continuously run this fan for 2 - 3 hours to break it in.