4 Pin Fan Speed Controller PWM Fan Governor USB to Type C Power Supply DIY Water-Cooled Radiator Water Pump Converter Adapter

4 Pin Fan Speed Controller PWM Fan Governor USB to Type C Power Supply DIY High Power Water-Cooled Radiator Water Pump Converter Adapter  Note:To adapt to most USB power interfaces, the speed controller uses a 5V power input and converts to a 12V output;It is necessary to ensure 5V 2Ainput to meet the maximum output of 0.67A and 8W for 12V output;The conversion rate can reach 80%. If the input is 5V, 1A, the output can only have 12V, 0.33A, 4W, and so on .. Packing list: Speed Controller X1, USB cable X1