The ME80251V1-000U-F99 is a DC brushless fan made by Sunon. It is a 25mm square frame fan with a rated speed of 11000rpm, an airflow of 4.8CFM, and a noise level of 28.5dBA. The fan has a 4-pin connector and is PWM controlled. It requires 5V to operate and is UL, RoHS and CE certified.