Purchased from the Apple store last month at retail price.
Set it up and used for about a week. Just bought the new M5 Mac Air since I needed a new laptop too. This thing can handle everything I'd throw at my desktop / mac mini, so I don't need the mac mini anymore.
It's the Mac Mini with the M4 chip, 16GB Ram, and 256GB Storage.
Selling it for the price I bought it for, excluding tax.