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Amazon.com: Manual 12V DC Variable Speed Controller 4 pin Molex to Dual 3 pin Connector : Electronics
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Amazon.com: 8W DC 12V PC Cooling Fan Speed Control,USB to Dual 3-Pin 4-Pin Fan Power Adapter Cable,DC 5V Step up 5-12V Adjustable,with 2-Way Splitter Cable : Delinx: Electronics
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Amazon.com: Delinx 12V Fan Speed Controller, Fan Power Adapter,USB 5V Step UP Boost to DC 12V Adapter, 5-12V Adjustable, with 3/4 Pin Fan Connector Cable, 4.8ft Length : Electronics
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