USB Relay
16-Channel 9-36V USB Relay Module – SainSmart.com
DC 5V USB Relay 2 Channel Programmable Computer Control Power Supply Module for Smart Home Controller Relay Board 250V 10A: Amazon.com: Industrial & Scientific
KMtronic Ltd: USB Relay Controller One Channel
USB 16 Channel Relay Module - RS232 Controlled
8-Channel USB Relay Card - RobotShop
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
Devantech 8 Channel USB Relay Module | Acroname
KMtronic Ltd: USB Four(4) Relay Controller
1 Channel USB Relay DC 5V Programmable Module - ElectroPeak
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
Drive Control Board Switch | Usb Relay Module - Relay Module 2 Channel 5v Control - Aliexpress
usb relay controller
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
1 Channel Usb Relay 5v Programmable Computer Control For Smart Home 1ch Module Board - Relays - AliExpress
USB 4 Relay controller - thermoregulator with sensor TCN75A
USB Relay Controller - Eight Channel
DOACT Type-B USB Relay Board Module Controller 8 Channel 12V For Automation Robotics. - Walmart.com
USB Relay Controller Board - 4 Channels for Home Automation
4-Channel USB Relay Board with 6-Channel A/D Interface
