To celebrate the Mega Drive’s 30th and Dreamcast’s 20th birthdays, a Japanese company is making MicroSD cards with MD, DC and Saturn themes printed on them. I think they look awesome and would love one for my Mega Everdrive! I just wish the Saturn and DC cards came in 400GB options, so I can put the whole ISO set on them ;p
Available from Amazon in Japan:
https://www.amazon.co.jp/dp/B07H7HB4HS
https://www.amazon.co.jp/dp/B07H75LW7P
https://www.amazon.co.jp/dp/B07H75LW7Q