Custom Firmware Teaches USB Relay Board New Tricks | Hackaday
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USB Relay Controller Board - 4 Channels for Home Automation
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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
Amazon.com: SMAKN LCUS-1 type USB relay module USB intelligent control switch USB switch : Electronics
1 Channel USB Powered Solid State Relay Module | Numato Lab
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LCUS 1 type USB Relay Module Electronic Converter PCB USB Intelligent Control Switch|relay module|usb relayelectronic module - AliExpress
USB Relay 1 Channel | 102056 | Other by www.smart-prototyping.com
Devantech USB-RLY16L - 8 x 16A Latching Relay | Acroname
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SainSmart 4-channel 5V USB Relay Module for Automation Robotics – SainSmart.com
