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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mosfet - How can I adapt a 3-pin PC fan connector to a 4-pin connector? - Electrical Engineering Stack Exchange
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PNGKNYOCN 3-Pin Fan a 4-Pin Molex Pass-Through Cavo adattatore di alimentazione, 4-pin Molex/IDE a 3 pin CPU Fan Power Cable (confezione da 2) : Amazon.it: Informatica
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