Amazon.com: waveshare USB to RS232/485/TTL(UART) Industrial Isolated Converter with Original FT232RL Inside and Power Isolation ADI Magnetical Isolation TVS Diode Protection Circuit Aluminium Alloy Enclosure : Electronics
USB to 2-Port Isolated RS-232, RS-422, RS-485 DB9 Serial Interface Adapter - Sealevel
Amazon.com: waveshare USB to RS232/485/TTL(UART) Industrial Isolated Converter with Original FT232RL Inside and Power Isolation ADI Magnetical Isolation TVS Diode Protection Circuit Aluminium Alloy Enclosure : Electronics
Debug Board USB to RS232 Isolated Serial Converter from DUPPA on Tindie
BB-USOPTL4-LS-ULI-341TCK - USB to RS-422/485 (Terminal Block) Isolated Converter. Locked Serial Number
USB2 to 8-Port RS232-422-485 Serial TB Adapter Isolation | Surge - Coolgear
FTDI Chip USB to RS-485/422 Industrial Isolated w/ DB-9/RJ45/Terminal Screw
USB to RS485 Isolated adapter / converter
Black Box USB TO RS232 OPTO-ISOLATED CONVERTER (SP385A-R3)
Moxa USB to RS232 / 485 / 422 Isolated Converter UPort 1150I
Industrial USB 2.0 to RS-232 Serial Adapter Optical Isolation
ADAM-4561-CE - Advantech - Converter, Isolated USB to Serial, Multimode
Converter | Home Appliance Control Module - Usb Rs485/422/232 Serial Converter - Aliexpress