We know, you’ve already got a USB to serial adapter ... With the ability to be directly plugged into a RS-232 port, this adapter will certainly catch the eye of retrocomputer enthusiasts.

It can be connected through UART (TTL, RS232), USB, as well as Ethernet, and is available as a PCB module and with Desktop housing. TWN4 MultiTech 2 is also compatible with over 60 of the most common ...

There was a time when if you bought a USB mouse, in the box was also an adapter ... it may well have come with an adapter for a 9-pin RS232 serial port. Those mice from a decade or more ago ...