this 4 pin pwm fan splitter cable with 26cm allow you make more choices to position your fans inside your computer case, which also make your computer case very clean and tidythis 4 pin pwm fan splitter cable could connects 2 computer case fans to a single motherboard fan header, which increases airflow in your computer case to reduce the accumulation of heat within the chassisthis 4 pin pwm fan splitter cable is compatible with 4pin PMW fan connector and 3pin fan connector, each pack of this fan splitter cable is with one of 4 Pin PMW Fan Connector one of 3 Pin PMW Fan ConnectorThis cost-effective 3 Pack of 4 pin fan splitter cables provide the more spare cable for adding fans to increase cooling in your computer case to ensure the operational speed of CPUThe 4-pin connector supports 3-pin and 4-pin fans;Temperature control: the pwn fan splitter cable provide additional fans to increase airflow in the computer case, reduce the temperature and ensure the operational speed of CPU