[Expand Fan Interfaces] - This 1 to 8 splitter provides an 8-way 4-pin and 3-pin PWM fan power supply extension hub, offering a reliable power solution for internal PC case cooling fans. [Function] - The hub allows connection of up to 8 fans, with a rotating potentiometer enabling simultaneous speed adjustment for all 8 PWM fans. [Widely Compatible] - Supports both 4-pin and 3-pin fans. Note that speed control is not available for fans without PWM functionality. The total current drawn by connected fans must not exceed the maximum rated current of 17A to prevent damage. [High Performance] - Features a high-performance black circuit board design. Compact size for easy installation, low resistance, and durable materials that do not compromise fan performance. [Glue Fixation] - Reinforced adhesive backing ensures strong bonding and secure mounting inside your PC case. Color: Black Material: Metal + Plastic Size: 4.2 x 2.9 cm Package Contents: 1 x Fan Hub Note: Light and display settings may cause slight variations in color compared to the actual product. Measurement allows an error of +/- 1-3 cm.