KMtronic Ltd: USB Four(4) Relay Controller
8-channel 12VDC Type-B USB Relay Board Module Controller Automation Robotics | eBay
USB Relay Controller Board - 4 Channels for Home Automation
USB 4 Relay controller - thermoregulator with sensor TCN75A
1 Channel USB Relay DC 5V Programmable Module - ElectroPeak
Amazon.com: 8-Channel 12V USB Relay Board, 8-Channel 12VDC Type-B USB Relay Board Module Controller for Automation Robotics : Electronics
USB Eight Channel Relay Board for Automation
diymore 8 Channel Relay Board Type B USB Programmable ULN2803 Relay Driver Chip for Arduino Smart Home DC 12V|usb relay|controller 12vcontroller programmable - AliExpress
8 Channel USB Relay Module | Numato Lab
4 Channel USB Relay Module With GPIO And Analog Inputs | Numato Lab
DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific
TOSR04 - 4 Channel USB/Wireless 5V Relay Module
4-Channel USB Relay Board with 6-Channel A/D Interface
Devantech 8 Channel USB Relay Module | Acroname
Drive Control Board Switch | Usb Relay Module - Relay Module 2 Channel 5v Control - Aliexpress
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
Amazon.com: LM YN 2-Channel Micro USB Relay Module USB Smart Control Switch : Electronics
