SD memory cards
E745349
SD memory cards are compact, removable flash storage devices widely used in cameras, smartphones, and other portable electronics for data storage and transfer.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| SD memory card | 0 |
Statements (94)
| Predicate | Object |
|---|---|
| instanceOf |
flash memory card
ⓘ
non-volatile memory device ⓘ removable storage device ⓘ |
| abbreviation | SD card ⓘ |
| busInterface |
Default Speed
ⓘ
High Speed ⓘ SD Express NERFINISHED ⓘ UHS-I ⓘ UHS-II ⓘ UHS-III ⓘ |
| capacityClass |
SDHC
NERFINISHED
ⓘ
SDSC NERFINISHED ⓘ SDUC NERFINISHED ⓘ SDXC ⓘ |
| capacityRange |
SDHC 2 GB to 32 GB
ⓘ
SDSC up to 2 GB ⓘ SDUC 2 TB to 128 TB ⓘ SDXC 32 GB to 2 TB ⓘ |
| commonManufacturers |
Kingston
NERFINISHED
ⓘ
Lexar NERFINISHED ⓘ Panasonic NERFINISHED ⓘ Samsung NERFINISHED ⓘ SanDisk NERFINISHED ⓘ Toshiba NERFINISHED ⓘ Transcend NERFINISHED ⓘ |
| competesWith |
CFast
NERFINISHED
ⓘ
CFexpress NERFINISHED ⓘ CompactFlash NERFINISHED ⓘ USB flash drives ⓘ XQD NERFINISHED ⓘ |
| dataRetentionType | non-volatile ⓘ |
| fileSystemSupport |
FAT12
NERFINISHED
ⓘ
FAT16 NERFINISHED ⓘ FAT32 NERFINISHED ⓘ exFAT ⓘ |
| formFactorVariant |
microSD
ⓘ
miniSD NERFINISHED ⓘ standard SD ⓘ |
| fullName | Secure Digital memory card ⓘ |
| governingBody | SD Association NERFINISHED ⓘ |
| hasBackwardCompatibility | yes (newer cards often work in older hosts with limitations) ⓘ |
| hasController | integrated flash memory controller ⓘ |
| hasLogo | SD stylized logo ⓘ |
| hotSwappable | yes ⓘ |
| introducedInYear | 1999 ⓘ |
| marketPosition | consumer removable storage ⓘ |
| maximumBusSpeed |
up to 104 MB/s (UHS-I)
ⓘ
up to 312 MB/s (UHS-II) ⓘ up to 624 MB/s (UHS-III) ⓘ up to several GB/s (SD Express, PCIe/NVMe based) ⓘ |
| physicalHeight |
15 mm (microSD)
ⓘ
32 mm (standard SD) ⓘ |
| physicalThickness |
1 mm (microSD)
ⓘ
2.1 mm (standard SD) ⓘ |
| physicalWidth |
11 mm (microSD)
ⓘ
24 mm (standard SD) ⓘ |
| powerSupplyVoltage | 3.3 V ⓘ |
| primaryUse |
dash cams
ⓘ
digital audio recorders ⓘ digital cameras ⓘ drones ⓘ handheld game consoles ⓘ portable media players ⓘ single-board computers ⓘ smartphones ⓘ tablets ⓘ video cameras ⓘ |
| speedClassMarking |
C10
ⓘ
C2 ⓘ C4 ⓘ C6 ⓘ |
| speedClassSystem |
Speed Class
ⓘ
UHS Speed Class ⓘ Video Speed Class NERFINISHED ⓘ |
| standardizedBy | SD Association NERFINISHED ⓘ |
| storageTechnology | NAND flash memory ⓘ |
| supportsSDMode | yes GENERATED ⓘ |
| supportsSecurityFeatures |
CPRM
NERFINISHED
ⓘ
password protection (optional, host dependent) ⓘ |
| supportsSPIBusMode | yes GENERATED ⓘ |
| supportsWearLeveling | yes GENERATED ⓘ |
| supportsWriteProtection | yes GENERATED ⓘ |
| typicalUseCase |
data transfer between devices
ⓘ
embedded storage for small computers ⓘ photo storage ⓘ video recording ⓘ |
| uhsSpeedClassMarking |
U1
ⓘ
U3 ⓘ |
| videoSpeedClassMarking |
V10
ⓘ
V30 ⓘ V6 ⓘ V60 ⓘ V90 ⓘ |
| writeProtectionMechanism | mechanical lock switch (standard SD) ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.