Features: 100% brand new and high quality 1 to 5 Splitter, solve the embarrassment that the motherboard fan port is not plugged enough at one time Expand the 3-pin/4-pin interface of the 5-position fan, solve the lack of motherboard interface, and concentrate on processing fan wires. The pwm interface is connected to the motherboard cpu fan interface, the first dedicated interface for cpu fan. The FAN1/FAN2/FAN3/FAN4 interface is a pwm conventional fan interface. This product is a hub, the function is to expand a single motherboard four-pin port into multiple ports, and the CPU is plugged into the CPU fan. If your fan is a 3-pin fan, you can also plug it in, but it cannot achieve PWM control speed Please Notice. Package Includes: 1x Fan Hub Specifications: Material:Tinned Copper+PVC Length: About 41cm/16.14in Extended Quantity: 5 Wire Model: 1007 22AWG Insulation Material: PVC insulation Conductor Specifications: 17/0.14TS Outer Diameter of Wire: OD 1.6mm Rated Temperature: 80 Wire Color: Black Interface: One end of the computer motherboard 4Pin interface, the other end of the 5 4Pin headers. Function: Make 5 computer fans share a 4Pin interface Features: Support multi-channel PWM fans, compatible with 3PIN, 4PIN fans, support chassis wiring, with adhesive, you can fix the hub on the chassis. Application: Suitable for 12V 3PIN/4PIN fans note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you