Aideepen | DC 5-12V PWM Speed Controller Fan Speed Governor 4 Wire With Switch Noise Reduction for 12V 4-Wire Chassis or CPU Fan

Product feature:1. Supports a wide voltage input range of DC5-12V, suitable for a variety of devices with different voltage requirements, enhancing flexibility in use2. The fan speed can be controlled through manual adjustment, making it more convenient to use3. Equipped with a built-in switch function, users can directly control the start and stop of the fan, which is convenient and quick, effectively extending the lifespan of both the fan and the equipment4. The adoption of advanced PWM speed regulation technology not only reduces the noise generated by the fan during operation, but also maintains good heat dissipation at low speeds, creating a quieter working or living environment5. The four-wire interface is compatible with mainstream chassis fans, enabling easy fan speed controlProduct Parameters:Operating Voltage: DC 5-12V. It can operate at voltages ranging from 5-15V. Please ensure the fan voltage matchesFan current: not exceeding 4A. This current is limited by switches and connectors, and can be expanded through a separate power cordSelf-consumption of the circuit board: less than 20mA without connecting a fanPWM signal mode: 5V at 20.5KHz for 12V power supply, and 4V at 20.5KHz for 5V power supplyPWM signal output range: 1%-100Output interface model: Conventional CPU and chassis fan sockets, with a pin spacing of 2.54mmCircuit dimensions: circuit board 22mm*20mm, knob screw protruding 15mm, mounting hole 7mmFunction Description:Pay attention to the positive and negative poles and the power supply voltage. After connecting the power fan, it can be used. Turn the potentiometer counterclockwise to the end to turn it off, and clockwise to the end for maximum output.If the fan's speed changes in the opposite direction to the adjustment, it indicates that the fan is a counterclockwise fan. The (PF) setting point needs to be short-circuited using solder. Before performing this operation, be sure to power off to avoid damage! After short-circuiting, the PWM signal will change in the opposite direction with the adjustment, indicating that the counterclockwise fan can now be adjusted in the clockwise direction.Note:This is a four-wire PWM fan speed regulator, which can only control four-wire fans that support PWM speed regulation, such as many 12V four-wire chassis or CPU fans. It cannot control 2- or 3-wire fans!!!The default startup PWM starts from 1% for adjustmentShipping list:Fan speed regulator X1