IIRC, these have a RJ type connector (seems so long ago since I made a cord to connect one of these KBD)
The keyboard is very well manufactured/solidly built without being too heavy. Nice to type with an added bonus of a speaker + volume switch on the back. So if you want the keyboard to click louder, just increase this speaker volume.
I still have my NIB somewhere and is a keeper. All in all, I like it, but that's only my personal opinion.
NB: The switches do not click, the speaker provides this pseudo click sound.