USB relay board LRB, 8 relays, ELECTRONIC-SOFTWARE-SHOP
8-channel programmable relay with USB connector – Techfun.sk – At least the Arduino shop
Usb Relay Module Usb Intelligent Control Switch For Lcus-1 Type Electronic Converter | Fruugo SK
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
USB Relay 16-Channel 3-Amp DPDT with UXP Port: Relay Pros
USB Relay 1 Channel | 102056 | Other by www.smart-prototyping.com
2 Channel 5V USB Relay Module | 10A 250V AC
8-channel 12v Usb Relay Board, 8-channel 12v For Dc Type-b Usb Relay Board Modul | Fruugo SK
Electronics :: Relays :: 12V USB Relay 4 Channel Programmable Computer Control
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
Relay Boards With I/O :: 8 Channel USB Relay Board W/ISO Input Port and DC Power Terminal Block