it may well have come with an adapter for a 9-pin RS232 serial port. Those mice from a decade or more ago would have contained the software to recognise the interface into which they were plugged ...

The easiest interface to use was the trusty serial port — hardly the fastest but definitely the best supported. But how does one retrieve an image fired down a serial port? Most of the post is ...

The Pocket 4 is powered by an AMD Ryzen AI 9 HX 370 processor with Radeon 890M ... allowing you to customize it to your needs. An RS232 port is available for $14, a single-port KVM for $48 ...