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FAQ: What pin-configuration do Noctua products use?
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4 Pin PWM Fan Connector Male to 4 Pin Mini GPU Fan Connector Female - modDIY.com
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Zalman FanMate 1 - Rheostat and 4-pin PWM Fan Tweak on FrostyTech.com
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Bewinner 4-Pin PWM Fan Hub, 4-pin Male for CPU Fan PC Fans Hub, Computer CPU/Case Fan Power Multi Splitter Connector Cable Adapter for 12V Computer 3-pin 4-pin Fans : Electronics
What is PWM and how does it work? - ekwb.com
