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USB Relay Module USB Intelligent Control Switch 1 Channel MOS Tube Control Board | eBay
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DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific
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USB Relay Board, Modes 6 Channel USB Relay Module Wide Application For Households 5V,12V,24V - Walmart.com
