Hoembpn PWM Fan Speed Controller DC 12V 4-Wire Fan Governor Regulator with Knob Switch and LED Indicator, 25kHz Frequency, Compatible with PC Case/CPU Cooling Fan
Hoembpn PWM Fan Speed Controller DC 12V 4-Wire Fan Governor Regulator with Knob Switch and LED Indicator, 25kHz Frequency, Compatible with PC Case/CPU Cooling Fan
Hoembpn PWM Fan Speed Controller DC 12V 4-Wire Fan Governor Regulator with Knob Switch and LED Indicator, 25kHz Frequency, Compatible with PC Case/CPU Cooling Fan
- Precise adaptation to DC12V 4-wire PWM fans: Designed with 25KHz standard PWM frequency, it is compatible with most 4-wire 12V adjustable speed fans on the market, suitable for PC cases, CPU cooling and other scenarios.
- Precise speed regulation: The knob potentiometer speed regulation supports 0%-97% duty cycle adjustment, freely controls the fan speed, realizes the balance between noise and heat dissipation, and the fan runs stably without lag.
- Rotary switch LED indicator: The knob has a switch function, one-button start-stop and speed adjustment. The red LED indicator light is solid to indicate that the power supply is normal, and the operation is simple and intuitive.
- Compact design for DIY: Compact size and easy to install in small spaces, suitable for DIY modifications. Note: Manually soldering the cable to connect to the 12V power supply.
- Practical 2-pack: The package includes 2 speed controllers, which can be used by multiple fans at the same time or as spare parts, suitable for DIY installation, cooling solution optimization, and suitable for PC enthusiasts and maintenance personnel.
Brand: | Hoembpn |
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Manufacturer: | Hoembpn |
Part Number: | LDHSCXM |
Isin: | IYWTVYYJXMZJ |

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Through rotary speed regulation and fan speed adjustment, there is no abnormality
Compact size, suitable for complex wiring scenarios in the chassis.
It is the ideal cooling aid for PC DIY enthusiasts and installed gamers.
Minimalist operation: rotate and adjust the speed on and off, red light = normal operation
Product Name: PWM Fan Governor
Input Voltage: 12V DC
Output Method: Single-channel PWM output (4-wire fan control)
PWM Frequency: 25kHz (Compatible with most 12V PWM fans)
Duty cycle adjustment range: 0%–97% (adjusted by rotating potentiometer)
Control mode: rotary potentiometer with switch (rotation is switch and speed regulation)
Installation method: You need to solder the cable and connect it to a 12V power supply
LED indicator: red light indicates normal power
Size: Compact, easy to install inside a PC case or other DIY devices
Package List: 2 x PWM fan speed control plate
Applicable people and scenarios:
PC DIYers: Optimize the fan speed of the chassis to balance heat dissipation and silence;
Installation enthusiasts: Customize the speed regulation scheme for the CPU fan to avoid noise at low loads;
Electronic DIYer: 12V PWM fan speed regulation for 3D printers, amplifiers, and other devices.
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