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NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug and Play Suitable for PC Smart Controller: Amazon.com: Industrial & Scientific
KMtronic Ltd: USB Relay Controller One Channel
USB Relay Controller Board - 4 Channels for Home Automation
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USB Eight Channel Relay Controller - RS232 Serial controlled - 12V
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2 Channel USB Relay Module
TOSR02 - 2 Channel USB/Wireless Relay Module
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Amazon.com: Diyeeni 4-Channel 12V USB Control Switch Relay Module, Relay Board Computer Smart Switch Controller, PC Relay Module Expansion Board, Relay Board for Automation : Electronics
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Usb Relay Module Ch340 Usb Intelligent Control Switch 10a 250vac 30vdc Over-currentelay Lcus-1/lcus-2 /lcus-4/lcus-8 Smart Home - Integrated Circuits - AliExpress
Relay Controller,USB Relay Switch 12V 8 Channel Relay Module with USB Interface Drive-Free for Computer Smart Control Switch: Amazon.com: Industrial & Scientific
DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific
USB Relay Module – 4/8 Channels | USB Digital Output Module
NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug and Play Suitable for PC Smart Controller: Amazon.com: Industrial & Scientific
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NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug and Play Suitable for PC Smart Controller: Amazon.com: Industrial & Scientific
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