StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M - ICUSB232V2 - -
High-Speed USB-to-Serial Adapter for Windows 8 32/64-bit - U.S.Converters
Tripp Lite USB to Serial Adapter Cable USB-A to DB9 RS-232 M/M 5ft 5' - U209-000-R - -
USB to RS232 Adapter / Converter – CommFront
Industrial Grade USB RS485 USB RS422 USB RS232 Conversion Signal Converter Module USB TO RS232/422/485 USB 485/422 USB 232/485|Wires & Cables| - AliExpress
RS232 to USB converter - Victron Energy
USB-A to Serial Adapter Cable - RS232, DB9, 5-ft. | Eaton
USB to RS-232 2-Port DB9 Serial Adapter/Converter Multi-2/USB RS232 – Envistia Mall