Link
I’ve written about the history of the Sega Teradrive before, and you can read about that here.
Basically, it’s a 16-bit PC with an integrated Mega Drive, manufactured by IBM for Sega. The system was only released in Japan and is not exactly common.
If you’ve thought about picking one up before, this is a great auction for you. The seller has countless pics so you know what you’re getting, and everything looks to be in amazing quality.
Link (Just under $400 with half a day to go)
