StarTech.com 6ft (1.8m) 1-Port Professional RS422/485 USB Serial Cable Adapter with COM Retention USB to RS422 Adapter - TAA

Add an RS422/485 serial port to your system through USB; features COM port retentionThe ICUSB422 6 ft Professional RS422/485 USB Serial Cable Adapter with COM Port Retention lets you connect RS422 or RS485 serial devices to your USB-enabled computer. The adapter features a 9-pin (DB9) male serial connector as well as dipswitch controls for easy port configuration and requires minimal software. The RS422/RS485 USB Adapter is fully powered via the host USB connection and provides power to the attached serial device without requiring an external power adapter. COM Port Retenti