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Sega Master System is Sega's 2nd Console and was a part of the Third Console Generation. It was originally called Sega Mark III when it was released in Japan in 1985, when it got released in America in 1986, in Europe in 1987 and rereleased in Japan in 1987 it got renamed to Sega Master System with a new design (Model 1 & 2).

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Sega Master System Power Supply

I wanted to ask what kind of power supply does a SMS use? AC/DC? 9-12V? Does Sega Mark III and SMS Model 1 & 2 have the same Power Supplies?

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The SMS 1 & 2 use the same PSU, a DC 9V/ 1A. From what I found online, the Mk. 3 uses the same power supply.

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