USB Relay Module for Windows, Linux, Raspberry Pi : 15 Steps - Instructables
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Simplibox io - USB relay set
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Simplibox IO - Zihatec GmbH
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USB IO Relay Boards › - USB Eight Channel Relay Board for Automation
USB Relay Module for Windows, Linux, Raspberry Pi : 15 Steps - Instructables
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Amazon.com: NOYITO HID Drive-Free USB Computer Control Switch Relay Module USB Smart Switch Control Plug and Play (1-Channel USB) : Electronics
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USB Relay | Numato Lab
