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USB Relay Board - High Power USB Relays for Industrial Applications
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2 Channel USB Relay Module
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USB Relay Controllers with On-Board Analog Inputs and GPIO for Sensors
SH-UR01A USB Relay Controller for Computer and Laptop(1CH) - Walmart.com
Yocto-Relay - Tiny USB interface with two SPDT relays
USB Relay Module – 4/8 Channels | USB Digital Output Module
USB Relay Controller with 6-Channel I/O - DEV-09669 - SparkFun Electronics
USB 4 Relay Board for Home Automation - v2
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ADU200 USB Relay I/O Interface Module ( 5 AMP )
USB Relay Controller - Four Channel
