[Expand Fan Interface] - Excellent 8-way 4-Pin PWM fan powered expansion hub and 3-Pin splitter 1 to 8, it provides a better power solution for PC case internal motherboard cooling fans. [Function] - Through the hub, the controller can power up to 8 fans, and the rotating potentiometer can adjust the speed of 8 PWM fans simultaneously. [Widely Compatible] - For 4 and 3-Pin fans. If the fan does not support PWM speed regulation function, the speed regulation function is invalid. The total current connected to the fan must not exceed the maximum current value of 17A to avoid damage to the regulator. [High Performance] - The all-black high-performance circuit board is adopted, the hub is small and convenient to use, the material is strong and the resistance is low, which does not affect the fan's performance. [Adhesive Fixation] - Thickened adhesive is used to fix it, which has strong adhesion, easily fits into your computer case, and can fix the fan hub firmly inside the chassis. Color: Black Material: Metal+Plastic Size: 4.2 x 2.9cm Package Contents: 1 x Fan Hub Only the above package content, other products are not included. Note: Light shooting 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.