Miscellaneous Electronics
StarTech.com 13ft/4m 2-Port USB to Serial Adapter Cable, COM Retention, FTDI, USB-A to DB9 RS232, Changeable DB9 Screws/Nuts
INTERCHANGEABLE NUTS & SCREWS: Secure the adapter to serial devices using the pre-installed DB9 screws, or install the included DB9 Nuts for compatibility with serial peripheral devices/cables; Add two DB9 RS-232 ports to a computer, using a USB-A...
https://www.bizrate.co.uk/miscellaneouselectronics/startech-com-13ft-4m-2-port-usb-to-oid31217042635.html