Erm this isn't Triforce. That was a LONG time ago. Yes they once worked together on Triforce and had games but this is far beyond Triforce lol. That was like 2002. It was a beefy Gamecube. GD-Rom is what Dreamcast used. 1.2GB discs. Slightly smalelr storage than GCN's 1.5.
I know tri force is old but figured it could of been upgraded. What is the latest mario kart dx arcade cabinet running? That's from 2013 in Japan and 2014 in US
Some interesting analysis