{"product_id":"12v-pwm-fan-speed-controller-2-4-wire-ntc-temperature-control","title":"12V PWM Fan Speed Controller 2\/4 Wire NTC Temperature Control","description":"\u003ch2\u003e12V DC PWM Fan Temperature Speed Controller – 2 \u0026amp; 4 Wire, NTC B 50K 3950\u003c\/h2\u003e\n\u003cp\u003eTake full control of your computer chassis or DIY cooling system with this \u003cstrong\u003e12V DC PWM Fan Speed Controller\u003c\/strong\u003e. Designed for both 2-wire and 4-wire fans, this compact module automatically adjusts fan speed based on temperature readings via the included NTC thermistor (B 50K 3950) — keeping your system running cool and quiet without manual intervention.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building a custom PC, optimising a server cabinet, or working on a DIY electronics project, this controller delivers smooth, automatic speed regulation that reduces unnecessary noise when full cooling power isn't needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePWM Speed Control:\u003c\/strong\u003e Smoothly regulates fan speed using Pulse Width Modulation for efficient, stable operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature-Driven Automation:\u003c\/strong\u003e NTC B 50K 3950 thermistor senses ambient or component temperature and adjusts fan speed automatically\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Supports 2-wire and 4-wire DC fans — ideal for chassis, CPU, GPU, and case fans\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended Supply Voltage:\u003c\/strong\u003e 12V DC (working range: 9V–14V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Output Current:\u003c\/strong\u003e 0.8A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to +60°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY Kit Package:\u003c\/strong\u003e Comes ready for hands-on assembly and customisation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNoise Reduction:\u003c\/strong\u003e Lower fan speeds at lower temperatures mean a quieter, more pleasant environment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Easy to integrate into existing builds or new projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRecommended 12V (9V–14V working range)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.8A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePWM (Pulse Width Modulation)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermistor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNTC B 50K 3950\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-wire \u0026amp; 4-wire DC fans\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY Kit (Qty: 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 12V DC PWM Fan Speed Controller Module (DIY Kit)\u003c\/li\u003e\n  \u003cli\u003eNTC B 50K 3950 Thermistor Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You Might Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of fans are compatible with this 12V PWM fan speed controller?\u003c\/h4\u003e\n\u003cp\u003eA: This controller is compatible with both 2-wire and 4-wire DC fans commonly used in computer chassis, CPU coolers, case ventilation, and DIY electronics projects. As long as the fan operates at 12V DC and draws no more than 0.8A, it should work with this module.\u003c\/p\u003e\n\u003ch4\u003eQ: How does the NTC B 50K 3950 thermistor work with this controller?\u003c\/h4\u003e\n\u003cp\u003eA: The NTC (Negative Temperature Coefficient) thermistor monitors the temperature of the surrounding environment or component. As temperature rises, the controller automatically increases fan speed; as temperature drops, it reduces fan speed — keeping noise low when cooling demand is minimal.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this controller outside the recommended 12V supply?\u003c\/h4\u003e\n\u003cp\u003eA: The module is designed to work within a 9V–14V input range, with 12V DC being the optimal recommended voltage. Operating outside this range may affect performance or damage the module, so it's best to stay within the specified working range.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this a complete kit or does it require additional components?\u003c\/h4\u003e\n\u003cp\u003eA: This product is supplied as a DIY kit. It includes the controller module and NTC thermistor. You will need to supply your own 12V DC power source and compatible fan(s). Basic electronics assembly knowledge is recommended for installation.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of fans are compatible with this 12V PWM fan speed controller?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This controller is compatible with both 2-wire and 4-wire DC fans commonly used in computer chassis, CPU coolers, case ventilation, and DIY electronics projects. 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