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This manual knob fan controller hub delivers independent speed regulation for up to three cooling fans. Drawing power straight from the power supply via IDE 4Pin connector, it completely avoids the risk of motherboard fan pin burnout caused by excessive current load.
Users can twist the physical knob to raise or lower fan RPM anytime, flexibly switch between high-speed high-cooling mode for heavy load and low-speed quiet mode for daily browsing. It works seamlessly with CPU radiator fans, intake/exhaust chassis fans and water cooling radiator fans, requiring no system software configuration. Perfect for users who want manual fan tuning without relying on motherboard BIOS or lighting control software.