UTEK UT-885 USB to RS-485/422 Interface Protocol Vonverter (1-port USB to RS-422/485 Serial Converter with ESD protection) Supports Win XP/Vista/7/8/10/CE/Mac/Linux USB Signals:VCC,DATA+,DATA-,GND,FG RS-485 Signals:T/R+,T/R-,GND ;RS-422 Signals:TXD+,TXD-,RXD+,RXD-,GND The Range of Baudrate: 300-912.6Kbps, auto-detect serial signal Transmission Distance: 1.2KM for RS485 RS422, less than 5m for USB