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  • $22.39
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    DC12V 1A Automatic Temperature Controlled Fan Speed Governor with Temperature Sensor, CPU/PC Case Fan Speed Controller Compatible with 2/3/4-Pin Fans

    • Auto Thermostatic Speed Regulation: Built-in temperature probe automatically adjusts fan RPM according to real-time temperature, no manual adjustment needed
    • Wide Fan Compatibility: Works seamlessly with 2-wire, 3-wire and 4-wire PWM computer cooling fans
    • DC12V 1A Load Capacity: Supports multiple chassis fans, CPU coolers and cabinet cooling fans simultaneously
    • External Temperature Sensor Probe: Flexible probe can be attached to CPU heatsink, GPU or chassis for accurate temperature detection
    • Simple Plug-and-Play Installation: Compact size, easy to mount inside PC case, no complex software setup
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    This DC 12V automatic fan speed controller adopts intelligent temperature sensing design to dynamically adjust fan speed. When the detected temperature rises, it increases fan speed to boost heat dissipation; when temperature drops, it lowers rotation speed to cut down running noise, balancing cooling performance and quiet operation.

    It features a maximum output current of 1A, capable of driving multiple case fans, CPU cooling fans and radiator fans at the same time. Compatible with all mainstream 2-pin, 3-pin and 4-pin PWM fans, covering most PC cooling fan specifications on the market.

    Comes with a flexible temperature sensor probe, which can be firmly attached to CPU heatsinks, graphics card backplates or internal cabinet walls to capture accurate hardware temperature data. Compact lightweight body saves limited space inside computer cases, easy to fix with double-sided tape or cable ties.

    No driver or software installation required, just connect to 12V power supply and link cooling fans for instant automatic temperature control. Ideal accessory for gaming PCs, silent workstations, server chassis and small industrial equipment to reduce idle fan noise and prevent hardware overheating under high load.


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