Comparison of memory cards

This table provides summary of comparison of various flash memory cards, as of 2025^[update]. Of memory cards (i.e. intended as such, to use e.g. internally), SD cards allow for largest capacity by far (with SDUC variant up to 4 TB max. currently available, and the spec allocs up to 128 max.), though the much bulkier CFexpress cards can also match the capacity. The relatively large (external) USB flash drives allow for more capacity, and are available with 8 TB.