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Amazon.com: PWM Fan Hub, 4-Pin Computer CPU/Case Fan Power Multi Splitter Connector Cable Adapter for Computer Cooler Fans : Electronics
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Mini 4-Pin to 2 x 4-Pin PWM Fan Adapter (CAB004) ModMyMods.com - PC Watercooling Parts and Accessories
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Motherboard 4 Pin PWM Cooler Fan HUB Splitter Power Supply Socket PC 1 to 10 10Pin PWM Fan Speed Controller Practical Regulator - AliExpress
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Heldig 4 Pin PWM Fan Hub, 4 Pin Connector for CPU Fan PC Fan Hub, Computer CPU/Case Fan Power Multi Splitter Connector Cable Adapter for 12V Computer - Walmart.com
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EnLabs PWMHUB10S 10 Ports 4-Pin PWM Fan Hub, SATA 15pin to 10 Fan Power Splitter Adapter Cable w/ Self-sticker for 3Pin / 4Pin fan - Newegg.com
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4Pin Fan PWM Cable 1 to 2 Motherboard 4-Pin Female to PWM Fan 4-Pin Male Multi-fan Temperature Control Extension Cable Fan Cable - AliExpress
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Rongsi 2-Pack 3 Way 4 Pin PWM Fan Splitter Cable - 12 inches for Computer Cooling Fans - Walmart.com
![pins - Is the PWM rail of a 4pin pwm Computer fan Positive or negative - Electrical Engineering Stack Exchange pins - Is the PWM rail of a 4pin pwm Computer fan Positive or negative - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/5ipAk.png)