Matthew SparbyFor nearly 5 years, I've been trying to figure out what this adapter is supposed to connect to. It's still a mystery. Someday, the right person is going to see this post and they'll finally solve this puzzle.
MufasaThe guesses as to what this cable is from 2019 aren't that helpful either. You're getting a better response on Mastodon.
https://nitter.poast.org/Cloudscout/status/1091126831833595904
@ne1for23 the ebay auction I mentioned earlier was a suggestion from that thread back then but the person deleted their account so it's gone.
Even if the tweet wasn't deleted, the auction wouldn't be accessible anymore anyhow.
Was hoping you'd remember the auction title, but if its as much a mystery to them they probably called it a "Mouse/PC Serial/Mac Serial" cable and called it a day.