Mega Drive Mini is getting a Master System adapter in Japan, but it doesn't play games | VGC
Digital Press on Twitter: "A Sega Genesis Power Base Converter was just traded in. This adapter allows you to play Sega Master System games on you Sega Genesis Model 1 https://t.co/7JlKbaepco" /
MSU1 for..... the megadrive ! The Mega SD - Page 4
Sega Master System Converter II Reviews, Pricing, Specs
Power Base Converter - Sega Retro
Sms2sg1000 For Sega Master System (u.s. Version) To For Sega Mark Iii (japanese Version) Adapter For Sms Adapter - Accessories - AliExpress
raphnet. - Sega Master System to MarkIII/SMS-J cartridge adapter