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Can I run Noctua 3-pin fans on 4-pin PWM connectors or 4-pin fans on 3-pin connectors? : Noctua Knowledge Centre
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Is it normal for a 4 pin fan splitter to have 1 4 pin input and x 3 pin inputs? Does that still work with PWM? - Quora
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Akasa PWM Fan Splitter 2 x 4-Pin PWM Fans from one Motherboard 4 Pin PWM Header 4710614531918 | eBay
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