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DC 12V PWM Speed Controller Fan Speed Governor 2 3 Wire Computer Temperature control Switch for PC CPU Cooler Fan Alarm STK IC|Integrated Circuits| - AliExpress
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Enlabs PCIFANCO8SPR 8 Channel 3-pin 4pin Fan speed Controller w/ OFF Switch - 8 Fans RPM Speed Reduce Regulator by 4 Knobs w/ PCI Slot Cover - SATA 15pin to 8 Port
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Amazon.com: DC 12V 1A Automatic PC CPU Fan Temperature Control Speed Controller Case Fan Governor : Electronics
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