ADU200 USB Relay I/O Interface Module ( 5 AMP )
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Desktop Sounder Software for PC - Valcom UK
32 Channel USB Relay Module
USB Relay Board - High Power USB Relays for Industrial Applications
USB Relay Controller 16 Channels - Virtual Serial /COM/ Port, optical isolation | eBay
10pcs usb control relay board / pc intelligent controller / usb control 220V switch - AliExpress Home Improvement
USB Relay Controller - Four Channel with Clips for DIN Mount Rail
KMtronic Ltd: USB Relay Controller One Channel
USB Relay Controller - Two Channels
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USB Eight Channel Relay Board for Automation
USB Relays with Analog Inputs and GPIO from NCD - ncd.io
USB Relay
KMtronic Ltd: USB Relay Controller One Channel
USB 4 Relay Board for Home Automation - v2
8-channel 12V USB Relay Module | SainSmart – SainSmart.com
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
Type-B USB Relay Board, Controller USB Relay Board 12VDC USB Relay, Module Controller 8-Channel For Automation Robotics Robot - Walmart.com
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KMTronic USB One Relay Controller, RS232 Serial controlled, BOX, DIN rail | eBay
USB Relay Controller - High Power USB Relays for Industrial Applications
LCUS - type 1 USB relay module USB intelligent switch control - Walmart.com
USB RELAY BOARD SOFTWARE
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
16 Channel USB Relay Module
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USB Relay Controller - Eight Channel
USB Relay Controller with 6-Channel I/O - DEV-09669 - SparkFun Electronics
