YouMagine – Raspberry Pi 8-channel relay box by Marcel Klapwijk – YouMagine 🔨
USB Relay Controller Board - 4 Channels for Home Automation
16 Channel 5v Usb Control Switch Usb Control Relay Module Computer Control Switch Board - Integrated Circuits - AliExpress
Card Output 4 Relay Na Nc Com 24V 8A Connection USB Software PC 5 V / Dc 4064161039732 | eBay
Conrad 393905 4x Relay Board - NI Community
USB 4 Channel Relay/Relay Card - 220V / USB Relay Board 3800159300108 | eBay
Neobotix: USBoardUSS5
USB Relay
TRU COMPONENTS Relay card Component 5 V DC | Conrad.com
vintage conrad-johnson products - conrad-johnson
USB Relais für 230V/AC - Mikrocontroller.net
USB 4 Channel Relay Board
USB Relay
4 Channel USB Relay Module With GPIO And Analog Inputs | Numato Lab
USB Relay 1 Channel | 102056 | Other by www.smart-prototyping.com
USB 4 Channel Relay/Relay Card - 220V / USB Relay Board - v2 3800159301105 | eBay
TRU COMPONENTS Relay card Component 5 V DC | Conrad.com
USB 4 Channel Relay/Relay Card - 220V / USB Relay Board 3800159300108 | eBay
USB Relay Controller Board - 4 Channels for Home Automation
4-Channel USB Relay Board with 6-Channel A/D Interface
4 Channel USB Relay Module With GPIO And Analog Inputs | Numato Lab
