EK-Cable Splitter 4-Fan PWM Extended is a 1 to 4 PWM fan splitter that allows the user to connect four PWM fans from just one PWM fan header of the motherboard. And because the fans are PWM controlled, the RPM of each fan changes depending on the temperature of the CPU and/or motherboard BIOS settings, meaning the RPM and noise are reduced if the system doesn't want high airflow.
The extra power required to run four fans through this splitter is provided by the 4-pin molex connector, which must be connected when multiple fans are used.
If you want your motherboard to control the cooling in your computer, the EK-Cable Splitter 4-Fan PWM Extended might be what you're looking for.
(The CORSAIR iCUE Commander PRO turns your PC’s case into a smart case, using CORSAIR iCUE software to power stunning RGB lighting customization, precise fan speed control and accurate temperature monitoring, all from a single device.)