USB Relay Controller Board - 4 Channels for Home Automation
Devantech 8-Channel USB Relay Module - RobotShop
8 Channels DC 12V Relay Module / Computer USB Type-B Control Switch Driver PC Intelligent Controller DC 12V Board for Smart Home - AliExpress
Amazon.com: 8-Channel DC 12 V Computer USB Control Switch Relay Module USB Switch Controller with Imported High-Performance USB Control Chip : Automotive
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
5V 12V 1 2 4 8 Channel USB Relay Control Switch Programmable Computer Control For Smart Home PC Intelligent Controller
8 Channel USB Solid State Relay Module With GPIO | Numato Lab
USB Relay Module – 4/8 Channels | USB Digital Output Module
TOSR08 - 8 Channel USB/Wireless 5V Relay Module
Devantech USB-RLY16L - 8 x 16A Latching Relay | Acroname
NOYITO 4-Channel 12V Computer USB Control Switch Relay Module Drive-Free Relay Module Plug and Play Suitable for PC Smart Controller: Amazon.com: Industrial & Scientific
8 Channel 12V Low Level USB Relay Module | eBay
12V USB Relay 8 CH Channel Programmable Computer Control For Smart Hom – diymore
Amazon.com: 8-Channel 12V USB Relay Board, 8-Channel 12VDC Type-B USB Relay Board Module Controller for Automation Robotics : Electronics
8 Channel 12V USB Relay Board Module Computer PC Smart Control Switch Controller | eBay
Amazon.com: KNACRO 12V 8 Channel USB Relay Module Programmable Computer Control omputer USB Control Switch/Driver/PC Intelligent Controller-Pack of 20Pcs : Electronics