Durable: The black braided sleeve can protect the wires inside, making the wires not easy to break and wear; the heat shrink tube also makes the wires and connectors stronger. High Compatibility: The fan splitter connects 3 computer case fans to a single motherboard fan header, compatible with 4-pin and 3-pin PMW fan connectors Ideal Length: The wire length is 10.6 inches, which can better manage the internal cables. Fast CPU Cooling: 3 PC fans work at the same time to cool down the CPU faster, and the computer can run faster. Cable Shape Design: One end of the PWM fan cable is designed as a 4-pin female connector, and the other end is divided into two 3-pin and one 4-pin connectors; the ergonomic design of the extension cord provides you with greater flexibility, PWM or The fan is located in the inner casing.