– 5 port PWM fan hub is designed for new motherboards with limited fan headers. – Each 4-pin fan connector on the hub receives a PWM signal from the motherboard, allowing the connected fans to be controlled by the motherboard's software or BIOS. – The hub also includes a 3-pin connector for connecting to older motherboards that do not support PWM control. – With separate power and control cables, the hub's power consumption is separated from the motherboard, making it safer and more stable. – Adhesive tape on the back for easy mounting and a compact design that takes up less space in the case.