USB Fan Speed Controller 5V-30V 3A Adjustable Fan Stepless Regulator USB Extension Regulator Switches LED Light Controller

USB Fan Speed Controller 5V-30V 3A Adjustable Fan Stepless Regulator USB Extension Regulator Switches LED Light Controller

HDOYTXXM

There is not voltages boosting function, which is mainly used to adjust the speed of the motor, USB male input and USB female output and it cannot speed electronic products with built-in batteries Insert into phone charging treasure, insert the fan USB plug into the USB port of, and then turn the knob to adjust Stepless speed regulation output voltages ranges 5V-30V stable change, so speed of the fan can be adjusted, greatly the comfort Crafted from ABS, features USB input and a simple twist operation—clockwise to increase and counterclockwise to decrease fan speed for comfort Suitable for hot day at your desk, in your dorm room, or while traveling, this USB fan controller transforms any ordinary fan into a customizable cooling

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