- PWM Fan Speed Controller: This versatile controller features 4 channels to manage 12V four-wire fans that support PWM speed control, making it ideal for various chassis and CPU applications. Note that it is not compatible with 2-3 wire fans. - Reverse Fan Adjustment: If the fan speed operates in the opposite direction of the adjustment, the fan is a reverse model. To correct this, solder the setting point (PF) while the power supply is off. This allows for forward adjustment of reverse fans by changing the PWM signal direction. - Easy Installation: Ensure correct polarity and voltage supply for seamless operation. After connecting the fan to the power supply, use the potentiometer to adjust power from minimum (fully counterclockwise) to maximum (fully clockwise). A dedicated adjustable resistor on the board allows for initial speed settings. - Current Capacity: Designed for a maximum fan current of 3A, this controller is equipped with switches and connectors to handle standard fan loads. For fans exceeding 3A, connect the fan directly to the power supply, ensuring the fan's negative pole connects to the board's negative pole for speed measurement and control. Applications: 1. Ideal for PC builds, enhancing cooling efficiency by allowing precise fan speed control based on temperature needs. 2. Suitable for 3D printers, providing optimized cooling for components during operation. 3. Perfect for custom cooling solutions in home theater systems, ensuring quiet and effective airflow management. This PWM fan speed controller delivers reliable performance, compatibility, and ease of use, making it a valuable addition to any cooling setup.