Function: Through this hub speed controller, up to 8 fans can be powered, and the rotating potentiometer can adjust the speed of 8 PWM fans at the same time.Note: The fan base supports 3PIN and 4PIN fans. If the fan does not support the PWM speed regulation function, the speed regulation function is invalid. The total current connected to the fan should not exceed the maximum current value of 17A to avoid damage to the governor.Installation method: adhesive pad at the bottom of the hub, which can be glued and fixed in the chassis.Specification:High Power Fan PWM Hub Speed ControllerProduct size: 42 x 29 x 20mmSupply voltage: DC12VPower supply interface: 6PIN (2*3)Interface maximum current: 17ANumber of fan seats: 8Colour:blackMaterial:PCB+Plastic+MetalPackage Contents:5 * Fan PWM Hub Speed ControllerOnly the above package content, other products are not included.Note: Light 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.