Control Effect: Supports simultaneous use of 8 fans. Features PWM fan speed control, allowing for the joint use of 4-wire or 3-wire fans with PWM speed control ports. Note that the fan interface sequence is typically used. The maximum power for a single fan is within 60W, and the total power is within 300W (total power depends on the chassis power supply). Quiescent Current: 0.015A (standby mode) PWM Duty Cycle: 0%-100% PWM Frequency: 25kHz Type: Fan Speed Controller Working Voltage: DC12V Color: Green Material: PCB + Plastic + Metal Size: 60 x 35 x 16mm Package Contents: 5 x Miner Fan Speed Controller NOTE: 1. Raw material batches vary, and the colors of interfaces and capacitors on the product are random (specific colors cannot be chosen), which does not affect usage. 2. Fans can only be used with PWM speed control function and must have a PWM speed control wire. 3. This model is for PWM speed regulation with a speed regulation frequency of approximately 25K. PWM is the speed control signal; P is the 12V pole, and G is the 12V pole. Ensure correct wiring sequence to avoid damage. Only the above package contents are included; other products are not. Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.