Amazon.com: WITMOTION USB to RS485 Modbus RTU UART Converter Cable with CH340 Chip, Terminated by 4 Way Female Socket Header, Serial Adapter (1m/3.28ft, Black), Windows 10,8,7, Linux MAC OS : Electronics
Prodigy ZGX Series – 16/32/64 Channel USB/RTU/TCP Modbus GPIO Module
Master Converter | Adapter Module | Instrument Parts Accessories - Usb Rs232 Rs485 - Aliexpress
USB 16 Relay Board PCB - ModBus RTU, Timers - Denkovi A E LTD
Omega USB signal capture and generation.
Konwerter USB na RS485 USB ModBus RTU Falownik (wstęp do komunikacji z LinuxCNC) - YouTube