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DC 12V 8 Channel Relay Module USB Computer Control Board for Home Automation - Walmart.com
8 Channel USB Relay Module
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Amazon.com: SainSmart 16-Channel 9-36V USB Relay Module : Automotive
Relay Boards With I/O :: 8 Channel USB Relay Board W/ISO Input Port and AC Adapter
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USB Eight Channel Relay Board for Automation
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USB 4 Relay controller - thermoregulator with sensor TCN75A
DC 12V 8 Channel USB Type-B Relay Board Module Controller for Automation Robotic | eBay
USB Relay Board - High Power USB Relays for Industrial Applications
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
4-Channel USB Relay Board with 6-Channel A/D Interface
Amazon.com: USB Relay,8 Channel 12VDC Type B USB Relay Board Module Controller for Automation Robotics : Industrial & Scientific
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TOSR140 - 4 Channel USB Relay - (Password/Momentary/Latching)
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SainSmart 4-channel 5V USB Relay Module for Automation Robotics – SainSmart.com
Amazon.com: 8-Channel 12V USB Relay Board, 8-Channel 12VDC Type-B USB Relay Board Module Controller for Automation Robotics : Electronics
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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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