Add Fan Interface: Developed to control many system fans. The PWM fan torch can be connected to several computer fans to solve the problem of missing motherboard fan connections and centralized handling of fan cables. Compatibility: The fan hub is 4-pin compatible with all 12V CPUs and comes with 4-pin or 3-pin connections. The black covered nylon braided cable is more durable, making the interior of the PC casing look clean and tidy. 5 ports with 4 pins: PWM Hub has a total of 5 ports. 1 for 12V main system connection, for case fan 4. Support PWM function and speed control to meet your control requirements. PACAKGE includes: 4 5-way PWM Fan Splitter Color: Black Material: plastic Package Contents: 4 x PWM Fan Splitter 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.