8 Ports 4pin PWM fan hub power splitter; Power by 2x Molex 4pin interface from PSU; High Power Fan Hub, support 8pcs 12V2A Chassis fan working at the same time; Compatible with 3-pin/ 4-pin; PWM function for 4pin PWM fans, spin at the same speed using PWM controller; Full speed run for 3pin fans; 40CM PWM cable include