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Sega Genesis Power Base Converter (Sega Mastersystem)
The Power Base Converter, known as Mega Adaptor in Japan, Master System Converter in Europe and Adaptador Para os Jogos Master System in Brazil, is a peripheral for the Sega Genesis allowing it to play Sega Master Systemcards or cartridges. The Power Base Converter does not contain any Master System components but acts as a pass-through port. The converter contains two slots; a top slot for cartridge-based titles and a front slot for card-based games and accessories.