Ordinary 3-pin 4-pin adapter USB power supply 3-wire 4-wire motherboard interface fan to USB 5V power supply adapter cable
Select the blue option as shown in the figure for 4-pin head to USB power supply
Select the black option as shown in the figure for 3-pin to USB power supply
Either way, it is actually powered by 2 pins, but the width of the head is different. The 3-pin is just plugged into the 3-pin fan.
Power supply: 5V Long line: about 29CM(It doesn’t change the voltage)
Note: The 12V fan may not start after switching(Please make sure your fan 5V can start), And the speed will be much slower than 12V after starting, do not ensure that the speed is suitable for you, you can refer to the instructions of the fan
Solve the problem that the normal motherboard 3-pin 4-pin fan cannot be powered by USB
Suitable for ordinary motherboard 3-pin 4-pin fan
Use ordinary 3-pin 4-pin fans to make your own heat dissipation devices such as routers and switches