CPF04 is designed for enthusiasts with need for controlling numerous system fans.It is capable of expanding one motherboard PWM fan header to support up to eight fans. Powered directly by SATA cable from the computer power supply and filtered through a built-in 2200?F capacitor, the CPF04 can provide clean, stable voltage to any fan for optimal performance. Equipped with speed detection sensors for accurately controlling eight PWM fans simultaneously, it is an excellent solution for system fan expansion.