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6 Channel 12V HID Driverless USB Relay USB Control Switch Computer Control Switch PC Intelligent Control
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NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug and Play Suitable for PC Smart Controller: Amazon.com: Industrial & Scientific
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Amazon.com: 8 Channel DC 12V Relay Module Computer USB Control Switch Driver PC Intelligent Controller for Smart Home : Electronics
