The regulator can power 8 fans, and rotating the potentiometer can adjust the speed of 8 fans at the same time. The fan base supports 2P, 3P, and 4P fans, and all 3 types of fans can adjust the speed. Installation method: 1. The adhesive pad at the bottom of the limiter can be pasted and fixed in the chassis. 2. Make holes on the chassis according to the size shown in the figure, and the potentiometer can be fixed in the chassis hole with nuts. 3. Adjust the screw column on the chassis according to the size of the PCB fixing hole as shown in the figure, and fix the regulator on the screw column. Specification: Size: 62 x 45 x 26 mm Load current: 13 A Number of fan seats: 8 Power supply voltage: 12 V Power interface: 6 pin Speed adjustment range: 0-full speed Fan interface type: 2P, 3P, 4P Color: Green Material: PCB + plastic + metal Package Contents: 3 x Fan Speed Controller Only the above package content, other products are not included. Note: Light reflection and different displays