Description <br> PWM Speed Controller designed for 12V 4-wire PWM fan/pump. <br> This PWM Speed controller support 12v standard fan speed control, also support computer water cooling PWM pump head speed adjustment. <br> This governor is recommended to control the output power within 7-8 watts (12V 0.6A). <br> This governor input port is USB Type-C female.Output is standard PWM 4pin fan port. <br> Built-in DCDC boost circuit(boost USB 5V to 12V).Built-in pwm signal generator (make it able to adjust speed). <br> <br> Fan speed adjustment range 0-100%. <br> Turn the knob clockwise to increase the speed, Turn the knob counterclockwise to reduce the speed. <br> The application scenario of the governor design is mainly powered by the charging head/rechargeable battery, the common output capacity is generally 5V/2A, higher specifications are relatively rare, and the parameters of 12v/0.7A fan almost reach 5V/2A full power supply, while taking into account the small size of the PWM governor so limited cooling capacity. <br> It is recommended that the output current be controlled below 0.7A for short time use and below 0.5A for long time use. <br> Here means the current at the maximum speed, the fan current will vary proportionally according to the speed. <br> Input voltage: 5V <br> Output voltage: 12V <br> PWM frequency: about 25KHz <br> Output current: rated 0.5A/maximum 0.7A <br> Input port: USB TYPE-C female port <br> Output: PWM 4Pin <br> Speed range: PWM duty cycle 0-100% <br> Colour:Black <br> Material:plastic <br> <br> Package Contents: <br> 1 x PWM Speed Controller <br> 1 x USB to TYPE-C power supply cable <br> <br> Only the above package content, other products are not included. <br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>