Hi peeps, I found this: http://www.raphnet.net/electronique/markIII_to_smd/index_en.php Is that really all it is? if someone can confirm it I'll start building one!!
Not really. That's for mark iii. The connector is different from master system. But you can make one for master system too. No components required. But keep in mind that most games will work, certain games won't.
thought the mastersystem was the mk3... are they different? if i wanted to make both connectors together would it be possible? sweet! just found this: http://devster.monkeeh.com/sega/sega2sms.png aahh... 44 pin and 50 pin...