Isolated USB to RS485 adapter – Oleg Kutkov personal blog
USB to RS485 | RS422 Optically Isolated Industrial Serial Adapter
Isolated USB to RS485 data communication converter bridge
USB to RS485 Isolated adapter / converter
Converter USB-i485 - Gateways and Converters - Data Acquisition & Communication - Products - NOVUS Automation Inc. - Controllers, Thermostats, Data Loggers, Solid State Relays, Sensors, Transmitters, SCADA, Data Acquisition and Temperature Controllers
Isolated USB To RS485 Converter or USB To RS422 Adapter
Single Port USB 2.0 to RS-422 / RS-485 DB-9 Serial Adapter w/ Surge Protection & Optical Isolation - Coolgear
Isolated USB to RS422 / RS485 Converter
Industrial Grade Usb-rs485 Rs422 Rs232 Signal Converter Ftdi Chip Isolated Module Usb To Rs232/422/485 Magnetic Isolation - Electrical Wires - AliExpress
USB to RS422/RS485 isolated converter, USB-485 | BESD
Industrial Optical Isolated Usb 2.0 To Rs485 Rs-485 Converter Adapter, 600w Surge Protection, Support Win7 - Instrument Parts & Accessories - AliExpress
USB to 2-Wire RS-485 Converter, Isolated, DIN Rail Mounted – Microflex