The fan PWM splitter Y-cable for PC motherboard cooling fans are constructed using high-quality material, cable is strongly braided, sleeved and wrapped to provide long-lasting performance as well as to avoid dust and breakage. The PWM fan cable is designed with a 4-pin female connector on end and on the other end it splits into three 3-pin & one 4-pin connector; the ergonomic design of the extension cord offers you a greater flexibility to position your PWM or fans inside your internal case. he PWM case fan splitter provides better power supply for motherboard fans, supports PWM function, increases airflow, reduces the accumulation of heat within the frame and satisfies all your control needs to increase the lifespan of the motherboard. The 2-way PC PWM fan splitter power cable is mostly compatible with many of 3-pin and 4-pin PC case motherboard cooling fans; this PWM fan splitter hub connects 3 computer case fans to a single motherboard fan header. The pc fan extension cable 3-pin & 4-pin compatible is designed for enthusiasts with need for controlling numerous system fans. Name: One point four adapter cable HUB big 4pin to 3pin/4pin Length: 30cm Conductor specification: 11/0.16 Interface: One end is a large 4Pin D-type connector for the power supply, and the other four ends are a small 4Pin interface for a fan Function: make four computer fans share a big 4Pin interface Colour: black Material: tinned copper Package Contents: 4 x transfer cables Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.