4 Pin Pwm Fan Cable 1 To 1/ 2/3/4 Ways Splitter Black Sleeved 27cm Extension Cable Connector PWM Extension Cables [product name]: 4Pin one in two fan interface expansion cable (with woven mesh) [product length]: the total length is 27cm, and the length of each line is about 23cm [wire model]: 1007 26awg [insulation material]: PVC insulation [conductor Specification]: 7 / 0.14ts [conductor material]: tinned copper [outer diameter of wire]: od 1.3mm [rated temperature]: 70 [wire color]: color [appearance color]: Black [product weight]: 11g [product interface]: one end is a small 4Pin connector of the main board, and the other end is a small 4Pin connector of the fan [product function]: make two fans share one interface Purpose: when the CPU fan (4Pin) cable is not long enough and the motherboard interface is not enough, 3pin is supported. It mainly extends and extends the interface. This line is divided into two heads There are four lines at one end, and the colors are blue, yellow, red and black respectively The color of the other end line is [blue, red and black] Important note: In order to avoid the signal conflict of simultaneous speed measurement, one speed measurement line is missing. That is to say, among the two interfaces, one is 4 needles (supporting speed measurement and temperature control), and the other is 3 needles (only supporting temperature control). Reason: even fans of the same model may have different speeds. If you use one pin of the motherboard to measure more than two fans with different speeds at the same time, the motherboard will strike. As a result, the PWM and speed measurement functions of the two interfaces are invalid. Therefore, it is necessary to remove a speed measuring line of other interfaces, and only retain the speed of one fan, and other fans can also achieve the purpose of temperature control and speed regulation. _x000D_