In the mid 1990s after SEGA had released the Genesis Model 2, I was in the mall playing it on display. The Genesis had a really cool accessory plugged into it: It was a black cartridge that went in the game slot, from the blank cartridge was a cord that went to a small "power base" about the size of a Sega CDX. That "power base" has 5 cartridge slots on it and a button that would allow you to literally switch between 5 different games, thus making it unnecessary to keep swaping cartridges. Can anyone name this accessory? I really want it! I have searched ebay under terms like "game switcher" and no results. Any help would be appreciated. If memory server me correct, this device has the official SEGA logo on it.