Industrial Grade USB TO RS485 Converter with 120-ohm Terminal Resistor Selection Switch, Original FT232RL Chip, Multiple Protection Circuits. This product is an industrial-grade USB TO RS485 bidirectional communication module. It is equipped with the FT232RL and SP485EEN chips on board, along with multiple protection circuits to ensure stable communication. Designed to meet the high communication requirements of various applications, it is also compatible with multiple operating systems, including Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7 / XP.