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Description
4 Wire Signal Channel PC Cooling Fan PWM Controller Reversible PWM Fan 12V Control Board Fan Speed PWM Controller
Product Description
The single-channel PWM fan control board adopts the PWM speed regulation scheme, which can better adapt to the 4-wire speed regulation fans on the market. By rotating the potentiometer, the fan speed can be easily adjusted.
Specification
item
value
Power Interface
4pin
Application
Computer Case
Model Number
single-channel PWM fan control board
PWM frequency
25Khz
Duty cycle
0% to 97%
Rotary potentiometer
with switch function
Input voltage
12V
Instructions for use
Need to solder the wire by yourself, connect to 12V voltage, pay attention to the wiring sequence from top to bottom, 1 pin is grounded, 2 pin is connected to 12V, and 3 pin is left blank. Rotate the potentiometer, turn on the switch, the red led will light up, which means the power supply is normal. Continue to adjust the potentiometer clockwise, and the fan speed will gradually increase.
