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Devantech 8 Channel 16A USB Relay Module | Acroname
USB Relay Controller Board - 4 Channels for Home Automation
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USB Relay Controller - One Channel - PCB
16-Channel 9-36V USB Relay Module – SainSmart.com
USB 4 Relay Board for Home Automation - v2
USB 4 Relay controller - thermoregulator with sensor TCN75A
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Amazon.com: SMAKN LCUS-1 type USB relay module USB intelligent control switch USB switch : Electronics
SPOTBOT USB Relay - Intruder Surveillance Detection Smart Module – Alarmwizards
