4 Port Professional RS-232 USB 2.0 to Serial Adapter
USB-C to USB Adapter - Apple
6 in 1 Multi USB C Adapter With Ethernet | CableCreation
Tripp Lite RS232 to USB Adapter Cable with COM Retention (USB-A to DB9 M/M), FTDI, 5 ft. - USB / serial cable - USB to - U209-005-COM - USB Cables - CDW.com
Keyspan High Speed USB Serial Adapter - 230 Kbps | Dell USA
Plugable USB 2.0 2-Port Hub/Splitter – Plugable Technologies
Buy RS232 USB to RS232C Serial Port Adapter - CNC Specialty Store
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Eaton