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8 Channel USB Relay Module
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USB 16 Channel Relay Module - RS232 Controlled
TOSR04 - 4 Channel USB/Wireless 5V Relay Module
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
USB 16 Channel Relay Module - RS232 Controlled
Ccdes Multi-Functional 16 Channel DC 5V USB Relay Module Switch Control By Computer,Relay Module, USB Relay Module Switch - Walmart.com
16 Channel 5V Relay Module - Arduino compatible
16-Channel 9-36V USB Relay Module – SainSmart.com
Amazon.com: SainSmart 16-Channel 9-36V USB Relay Module : Automotive
16-channel 9-36v Usb Controlled Spdt Switch Relay Module Opto-isolated Board Srd-5vdc-sl-c With Led For Home Lights - Instrument Parts & Accessories - AliExpress
16 Channel Ethernet Relay Module With GPIO | Numato Lab
8-channel 12V USB Relay Module | SainSmart – SainSmart.com