Fan speed controller for optimum air flow and noise control
Includes two USB output to control 2 fans
Wire length: 40" / 1 meter
The fan controller has memory function. It can work with automatic timers.
Please note: Blue light on the fan controller means "OFF" state. Press the middle button, the controller status becomes "ON". If the fans are not working, need to keep press the "UP" button on the controller to turn on the fans.