PWM 4pin вентилятор с длинными рукавами удлинитель разветвитель кабеля материнская плата CPU 4 Pin 3 пути 4Pin кулер или 3pin чехол питания

When the CPU fan (4Pin) cable is not long enough, and the motherboard interface is not enough, it supports 3Pin. Mainly to extend and expand the interface.

There are four wires at one end, the colors are [blue, yellow, red, black] 

The colors of theother two terminals are [blue, red, black]

In order to avoid the signal conflict of simultaneous speed measurement, as long as there is one 4-pin (supporting speed measurement and temperature control), the other interfaces are all 3-pin.

Because even fans of the same model may have different speeds, if you use the motherboard to measure more than two fans with different speeds at the same time, the motherboard will strike, resulting in the failure of the temperature control and speed measurement functions. Therefore, it is necessary to remove a (yellow) speed measurement line of other interfaces, and only keep the speed signal of one fan. Other fans can also play the effect of temperature control and speed regulation.