SanDisk (Western Digital) announced what it described as the world's first 1 TB microSD card in 2022, packing a terabyte of QLC NAND flash into the tiny microSD form factor originally designed for mobile phones. This is a real shipped/announced product capacity, distinct from the SD Association's SDUC specification, which defines a much larger theoretical format ceiling that no card has come close to filling.
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SanDisk (Western Digital) announced what it described as the world's first 1 TB microSD card in 2022, packing a terabyte of QLC NAND flash into the tiny microSD form factor originally designed for mobile phones. This is a real shipped/announced product capacity, distinct from the SD Association's SDUC specification, which defines a much larger theoretical format ceiling that no card has come close to filling.
The largest storage capacity announced for a card conforming to the physical microSD form factor, as distinct from the SDUC specification's much larger theoretical format ceiling.
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Permanent ID limitsregistry.com/limits/LR-LARGEST-MICROSD-CARD-CAPACITY
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Limits Registry. LR-LARGEST-MICROSD-CARD-CAPACITY. Largest capacity commercially announced microSD memory card. 2026.