Rosewill 12-Inch PWM Splitter (RCW-FPS-401)

Supporting three PWM fans from a single motherboard header makes this the ultimate fan splitter for today's low noise performance systems. Case fans and water cooling radiator fans can now benefit from smart and precise PWM control alongside the CPU fan. Utilizing the intelligence of PWM for three fans enables multi fan connection and usage of more powerful fans while allowing their speed to be synchronized with CPU load. RPM feedback for the motherboard is provided from a connector marked CPU fan.