USB to RS422/485 Converter, Dsub-9pin Connector - Latching USB to 2 port Serial (male) Adapter/Converter - RS232 Interface - Supports USB Rev. 2.0 (Full speed) - Communication Speed: Up to 921.6kbps - Display communication status TX/RX LED - ±15kV Surge protection Auto Togging: Automatic control of BUS I/O for RS422/RS485 - Slew-Rate limit control