Alright. So I was running through Kevin's Youtube channel when I saw his New Astro City video. He said he had a Taito Type X, a dongle, and an I/O board. So the Taito Type X is the PC, but the game isn't in the Type X? Is that what the dongle is? Is that pretty much a USB with TGM3 in it? The I/O Board has been mentioned a couple times on Tetris Concept, so I want to explain AND BE CORRECTED so I know what I am talking about. There are two types of I/O Boards correct? JVS to JAMMA and vice versa. Most cabs are JAMMA cabs, so the JVS to JAMMA is what I will focus on. So from what I understand.... There is a USB that connects from the Type X to the I/O Board and the JAMMA harness connects to the I/O Board.... where does the JVS plug-in come into play? (lol, plug n' play HAHAHAHAHAHHA... ok i'm done). I've seen online some TGM3 boards with the JAMMA connections already sticking out of the Type X. Sooo... I dunno... scam? Maybe... Also, I'm looking diagram on Arcade Otaku... I thought the I/O Board also takes care of Sound and Display? Arcade monitors use VGA connectors? Again... does the JVS harness have any purpose here? And doesn't the Type X have a built in PSU? I appreciate all the help guys.