Crafted with PCB, electronic component and ABS materials, the fan controller is built to withstand heavy use and resist wear and tear. Expand 4-pin fan interfaces, solving the problem of lack of motherboard fan interfaces. Its user-friendly design ensures easy diy installation, saving you valuable time and effort. Features -Color:Black -Material:PCB, ABS, electronic component -Size:12.10X6.50X2.00cm/4.76X2.55X0.79in -Voltage range: -12v -Adjustment method: Manual knob adjustment -Power supply interface: Large 4D -Fans available: 8 -Upper limit power: 72w (theoretical value) -Installation location: Chassis location -Fan interface: (can be connected to 3pin) -This multifunctional fan controller is designed to support both 3-pin and 4-pin fans, practical to use. -Compatible with a variety of computer. The knob allows you to easily adjust the airflow, providing optimal cooling performance. -With its large 4d interface, connecting the fan controller to your computer motherboard is a breeze. -The fan controller has a simple installation process, allowing you to quickly replace or upgrade your fan setup. -Enjoy a quiet and efficient cooling experience with this fan controller, thanks to its reliable materials and advanced technology. Package list: 4 x computer fan adapter