3-Fan Spliter Cable in a Cost-Effective 2- pack 4 pin PWM 3 way Splitter Cable take a quick solution to control 3 case fans in a computer case. Extend more fans for computer case. The side connect PC fans have one 4pin connector, two 3pin connector, please connect 4pin first, And all fans can spin at the same speed via PWM control. Motherboard Connector PWM PC fan splitter connects to the 4-Pin header on the motherboard and splits the signal to 3 PWM fans. PWM fans can spin at the same speed via PWM software control. 3 Fan Splitter The extension cable Suit to 3pin and 4pin PC fans,.Extend more fans for computer case, Fans work at the same speed. Black Sleeved Braiding Material The length of PWM pc fan splitter cable is 10.6 inches.covered with black sleeved braiding material The pc fan splitter cable covered with black sleeved braiding material, effectively protection for cables and prevent from dust, it not only extend cable service life, but also looks good. 3 Fan 4pin PWM Fan Cable Splitter The side connect PC fans have one 4pin connector, three 3pin connector. please connect 4pin first.In order to avoid signal conflict, there need only one 4pin (for speed measurement and Temperature control), and other interface no need this pin, so they are 3pin. And all fans can spin at the same speed via PWM control. Max power is 36 Watts 3pin and 4pin Fans are compatible Motherboard can support 3 pcs PWM Fans