I have a MB138LL/A Mac Mini 1.83GHz Core 2 Duo with 3GB RAM (maximum) and a 64GB SSD. I still have the original 80GB HDD as well, which still works. I also have the original RAM sticks.
the latest OS X it can run is 10.7.x
It's a fine machine but I'm putting this feeler out anyway. I'm looking to sell it because I want a machine able to run 10.8+ and capable of over 3GB RAM.
post any offers if you're interested in this