Capacity (SD/SDHC/SDXC/SDUC) | SD Association (original) (raw)
There are four standards for capacity:
| SD Standard | SDHC Standard | SDXC Standard | SDUC Standard | |
|---|---|---|---|---|
| Capacity | up to 2GB | more than 2GBup to 32GB | more than 32GBup to 2TB | more than 2TBup to 128TB |
| File System | FAT 12, 16 | FAT 32 | exFAT | exFAT |
| SD Logo |  |
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| Form Factor Size | SD | 32 x 24 x 2.1 mm | ||
| microSD | 11 x 15 x 1.0 mm | |||
| Speed Classes | NormalSpeed mode | C2, C4, C6 | ||
| HighSpeed mode | C2, C4, C6, C10,V6, V10 | |||
| UHS-Imode | — | C2, C4, C6, C10U1, U3V6, V10, V30 | ||
| UHS-II& III mode | — | C4, C6, C10U1, U3V6, V10, V30, V60, V90 | ||
| SD Express mode | — | E150, E300, E450, E600 |