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3/4-Pin Fan Connector (Male) to 4-Pin GPU Mini Fan Connector (Female) - All Black (CAB152) - Newegg.com
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I bought a Razer Chroma addressable RGB hub and it has 3 pins and my Ql120 fans have 4 pins, can I use a connector or a converter? - Quora
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PNGKNYOCN 4-Pin Molex Pass-Through to 5 x 3 Pin Fan Connector Cable (Power 5 Fans from 1 Molex Connection!) 2X12V / 1X7V / 2X5V for CPU PC Case Fan
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Amazon.com: Graphics Card Cooling Fan Adapter Cable,4-Pin PWM to VGA Cooling Fan Connector Adapter Cable for ATI/Nvidia Video Cards : Electronics
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