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SinLoon PC 8 Channels Fan Hub Knob Cooling Fan Speed Controller for CPU Case HDD VGA PWM Fan PCI Bracket 12V Fan Control- 4Pin Interface Power Supply (4 Pin 1Knob) - Newegg.ca
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DC 12V PWM Speed Controller Fan Speed governor 4 Wire Computer Temperature control Switch for PC CPU Cooler Fan Alarm STK IC - AliExpress
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