 A 2.5-inch Serial ATA Macro SD Card | |
| Usage of flash memory | |
|---|---|
| Introduced by: | SanDisk |
| Introduction date: | 1991; 31 years ago |
| Capacity: | 20 MB (2.5-in form factor) |
| Original concept | |
| By: | Storage Technology Corporation |
| Conceived: | 1978; 44 years ago |
| Capacity: | 45 MB |
| As of 2019[update] | |
| Capacity: | Up to 100 TB |