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USB to 4Pin PWM 5V to 12V Boost Line USB Sleeved PC Fan Power Adapter Connector | eBay
A USB Fan Controller that now works under Linux
50CM 5V 12V USB to Dual 3-Pin / 4-Pin PWM Fan Splitter Power Adapter Cable with Sleeving - AliExpress
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PWM Controller – Creative Werks Inc.
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Noctua NA-FC1 PWM Fan Controller
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NA-FC1
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Razer PWM PC Fan Controller
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USB to 3/4-Pin PWM 5V USB Sleeved Fan Power Adapter Cable : Amazon.ca: Electronics
Amazon.com: CRJ USB to Dual 3-Pin and 4-Pin PC Fan 5V Sleeved Fan Power Adapter Cable : Electronics
Custom built 8 channel fan controller - TR Forums
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