Brush motor starting torque, high failure rate; brushless motor stable operation, low failure rate.
Brushless DC motor fan motor fan is quieter than the traditional ,also more power and longer life
USB fan is a miniature electric fan uses USB interface of the notebook or desktop. a flexible bellows can make USB fan blowing in any direction, and very low power. The computer USB port (that is, we are used to insert the USB flash disk) can provide voltage of 5 volts for external devices, current 500mA, USB Fan is using the USB interface to provide power for small fan