in Atari, Atari 5200, Prototype Atari Video System X and Cubicolor by Nicola September 11, 2010, 6:35 am Atari Video System X prototype Codenamed Video System X, this prototype later became the Atari 5200. Want to know more about this museum piece? Check the Atari Museum page or watch this: Other stuff: Cubicolor Atari 2600 proto SNES Samples relisted Swamp Thing NES Sample Virtual Boy Kiosk Share this:TweetShare on Tumblr Related 3d realms prototypeAtari 5200 prototype systemAtari Video System X for salecubicolor prototypeFeatured See more Previous article ATV Offroad Fury 3 PS2 Press Set Next article Eat, Sleep, Breathe Nintendo Written by Nicola Nicola, the Italian search engine over eBay...collects videogames from 1992. Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.