Well, I just picked it up this morning... took it into work... opened the nice carrying case... and the back says 512k. Sigh. I'll have to open it up and take a peek at the guts, but I don't recall any 128k Mac upgrades that involved replacing the case - which is what I was most interested in. Oh well, it was free and only 2 miles from where I work, so I can't complain too much. It did come with a very long hex screwdriver and a nice carrying case, so that's a win.