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Amazon.com: SainSmart 16-Channel 9-36V USB Relay Module : Automotive
Amazon.com: SainSmart 16-Channel 9-36V USB Relay Module : Automotive
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8 or 16 Channel Driver-less HID USB Relays Control Module Smart Home Automation
USB 16 Channel Relay Module - RS232 Controlled
USB 16 Channel Relay Module - RS232 Controlled
8 Channel USB Relay Module, External Power Supply
USB Relay Controllers with On-Board Analog Inputs and GPIO for Sensors
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USB Relay 16-Channel 10-Amp with UXP Port: Relay Pros
USB 16 Channel Relay Module,Board for Home Automation - Modbus RTU, Timers | eBay
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
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