The USB to RS422 Converter is an Industrial-Grade Device for Data Transfer Between to Computer? S USB Port and RS422 Serial Communication. It includes Optical Isollation, Overvoltage and Short Circuit Protection, And to Status LED. Powered by usb with the ft232 processor, it offers reliability and performance. ITS Wall-Mountable Aluminum Case is Suitable for Industrial Environments. Easy to Install and Mintain, It? S a Feature-Rich Solution for Industrial Communication.