Features:
1.The product adopts a 3d printed shell, which is tough, wear-resistant, and has excellent electrical insulation.
2.The input end of the product is a usb type-c female port, which can be compatible with type-c port chargers (pd) as power supply devices.
3.Integrated solution, integrating power supply and speed control knob, making it more convenient to use.
4.Stable performance, built-in pwm signal generation circuit and dc-dc boost circuit.
5.Supports 12v standard fan speed control, compatible with most usb fan and water pump speed regulation, and can also be used for diy cooling of routers/small hosts/soft routers, etc.

 Parameters: 
Product name: pwm governor
Input voltage: 5v
Output voltage: 12v
Output current: rated 0.5a, upper limit 0.7a
Pwm frequency: approximately 25khz
Power interface: usb type-c female port
Fan interface: pwm 4pin*1
Speed range: pwm duty cycle 0-100%
Product size: 45*22*18.5mm

Package include:
Speed controller*2
30cm power cord*2