The CPF04 was designed for enthusiasts who need to control numerous system fans. This is one motherboard PWM fan header to accommodate 8 fans. Receive power from a SATA cable from a computer power supply and filter with a built-in 2200μF capacitor, the CPF04 provides a clear, stable voltage for any fan to perform at optimum performance. Equipped with speed detection* sensors for precise control of 8 PWM fans simultaneously, it is a great solution for system fans.