Features: The DC12V 9A pwms PC CPU Fan Controller Module automatically adjusts fan speeds through temperature sensing technology, delivering optimized cooling performances with intelligent pwms regulation and multi channel support for enhanced systems protections. Featuring real time thermal monitoring, triple fan outputs, and visual failure alerts（Need to matching buzzer）, this PCB based controller ensures stable 9A current handling while maintaining compatibility with most PC motherboards and cooling systems. Ideal for PC enthusiasts, gaming builders, and workstation users requiring precise thermal management solution for high performances computing environments. Perfect for maintaining optimal temperatures in multi fan gaming PCs, overclocked systems, or compact builds where efficient airflows coordination is critical. Engineered with industrial grade components, this automatic temperature control board combines quiet pwms operate with robust overload protections, making it essential for maintaining hardware longevity in demanding computing scenarios. Specifications: Component: PCB Size:Approx.5x4.3cm/1.96x1.69inch Working voltages: DC12V Bus Current: 9A Single current: less than 4A Applicable scenario:Game PC,Workstation Option Type:1pc,2pcs; Package Includes: Package A 1pc CPU Fan Speed Controller Module Package B 2pc CPU Fan Speed Controller Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.