Single Port USB 2.0 to RS-422 / RS-485 DB-9 Serial Adapter - Coolgear
Industrial Usb To Rs485 422 Converter Upgrade Protection Rs485 Converter Compatibility V2.0 Standard Rs-485 A Connector Hot Sale - Integrated Circuits - AliExpress
USB to RS-485 DB9 1-Port Serial Interface Adapter - Sealevel
USB To RS485/RS422 FTDI Serial Adapter, 30-in. | Eaton
USB to RS-485 Adapter W/Terminal Block Changer FTDI chip inside