DC12V 1A Automatic TemperatureControlled Fan Speed Governor, PC CPU Case Fan Speed Controller with Temperature Sensor, Supports 2Wire 3Wire 4Wire Cooling Fans for Chassis Heat Dissipation

This DC 12V 1A automatic fan speed governor adopts temperaturesensing intelligent control to adjust fan rotation speed dynamically. With the attached temperature sensor detecting ambient temperature, the controller automatically raises fan speed under high temperature for enhanced heat dissipation, and lowers speed at low temperature to cut running noise. It supports 2wire, 3wire and 4wire fans commonly used for CPU and computer chassis cooling, bringing flexible cooling management for PC hardware. Compact module structure saves internal chassis space and requires only simple wiring for installation. It helps balance cooling performance and noise level for daily use. Widely suitable for desktop computer case modification, industrial equipment heatdissipation adjustment and DIY coolingsystem building. It is a practical accessory for PC enthusiasts and hardware renovation projects.