What Is the Largest SD Card Capacity (And How Big Can We Go?) Share July 7, 2023 Dm4r Technology In Johnny Mnemonic the eponymous cyberpunk courier has difficulty fitting 320GB of data in his head in the “future” of 2021. My Nintendo Switch has a tiny 512GB microSD card in it. But how big can we go? Read This Article on How-To Geek › Source : What Is the Largest SD Card Capacity (And How Big Can We Go?)