Item Type: USB Fan Governor <br>Material: Plastic <br>Model: FC-D012-P007 <br>Power Input Interface: Mini USB <br>Power Supply Current: 2A <br>Power Supply Voltage: 5V <br>Fan Wiring Port: 4pin 2.0mm Pin Interface <br>Installation Fixing Hole Diameter: 3.2mm x 4 Holes<br>1、Simultaneous Speed Adjustment: USB fan governor can adjust 24 fans at the same time through a single knob, with high speed adjustment efficiency. <br>2、Multi Purpose: USB fan speed controller can be used for fan speed adjustment, aerair volume adjustment, ventilation and heat dissipation assistance, etc. <br>3、Frequency Modulation Range: The speed control mode is 0?100%PWM, and the frequency is adjustable from 2K?50KHZ. <br>4、Practical Indicator Light: Mini USB fan controller has a power indicator light and a working indicator light, which is more convenient to observe when using. <br>5、Easy to Use: Fan governor module is easy to use, simple to install, no complicated procedures, installation can be used.1 x&nbsp;USB Fan Governor