The console is called the Sega Pluto, and apparently only two prototype units were ever made. As for what’s inside the Sega Pluto, it looks to be a modified Saturn that includes the NetLink 28.8kbit/s modem as standard. It allowed Saturn consoles to be linked up using a dial-up connection for multiplayer gaming. A disc has also been found by another user that is an internal Sega Saturn CD-R that holds a terminal specifically for Pluto."
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