The USB to RS232/485/TTL with Communication Modules RoHS from Waveshare is an industrial grade communication modules that allows for reliable data transmission over various protocols, including RS232, RS485, and TTL. It supports all common operating systems, including Windows, Linux, and Mac, and is compatible with all major development environments, including Arduino, MicroPython, and NodeMCU. The modules feature an integrated USB to serial conversion chip, making it an ideal choice for connecting peripherals with serial ports to PC over USB. The USB port and power supply plug compatibility make it easy to plug in and use. It also supports long-distance and multi-drop communication over RS485 and provides short-circuit protection, electrostatic and surge resistance, making it an ideal choice for industrial or other demanding applications.