I always wanted to experim,ent more with DE-9 controllers, see their limits and so on. They seem to be universal. Like the idea of putting a Mega Drive controller into a Master System.
Back then before USB port exist, most of peripherals and accesories weren't plug and play.
We have to install driver from diskette / CD attached with them.
Without the driver, those peripherals were useless.
I had this one printer that can't be used anymore, couldn't find the driver from internet, not even from the maker itself.