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USB Relay
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TOSR140 - 4 Channel USB Relay - (Password/Momentary/Latching)
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USB/Wireless 5V Relay Module
KMtronic Ltd: USB Four(4) Relay Controller
4 Channel 24V HID Driverless USB Relay USB Control Switch Computer Control Switch PC Intelligent Control
USB 4 Channel Relay Board
5V USB 4 Channel Automation Relay Computer Control for Arduino – diymore
TOSR140 - 4 Channel USB Relay - (Password/Momentary/Latching)
