| ame!!align="center"|Acronym!!Form factor |
| a href="/encyclopedia/CompactFlash-I" title="CompactFlash I">CompactFlash I | align="center"|CF-I | 43 × 36 × 3.3mm |
| a href="/encyclopedia/CompactFlash-II" title="CompactFlash II">CompactFlash II | align="center"|CF-II | 43 × 36 × 5.5mm |
| a href="/encyclopedia/SmartMedia-Card" title="SmartMedia Card">SmartMedia Card | align="center"|SMC | 45 × 37 × 0.76mm |
| a href="/encyclopedia/Memory-Stick" title="Memory Stick">Memory Stick | align="center"|MS | 50.0 × 21.5 × 2.8mm |
| a href="/encyclopedia/Memory-Stick" title="Memory Stick">Memory Stick Duo | align="center"|MS Duo | 31.0 × 20.0 × 1.6mm |
| a href="/encyclopedia/Multi-Media-Card" title="Multi Media Card">Multi Media Card | align="center"|MMC | 32 × 24 × 1.5mm |
| a href="/encyclopedia/Reduced-Size-Multi-Media-Card" title="Reduced Size Multi Media Card">Reduced Size Multi Media Card | align="center"|RS-MMC | 32 × 24 × 1.5mm |
| a href="/encyclopedia/Secure-Digital-Card" title="Secure Digital Card">Secure Digital Card | align="center"|SD | 32 × 24 × 2.1mm |
| a href="/encyclopedia/miniSD-Card" title="miniSD Card">miniSD Card | align="center"|miniSD | 21.5 × 20 × 1.4mm|- |
| a href="/encyclopedia/microSD" title="microSD">microSD Card | align="center"|SD | 32 × 24 × 1.5mm |
| a href="/encyclopedia/xD-Picture-Card" title="xD-Picture Card">xD-Picture Card | align="center"|xD | 20 × 25 × 1.7mm |
Since all sorts of EEPROM devices only allow a finite number of write cycles, some of these cards incorporate