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.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T8611457 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SD memory cards Context triple: [SD Association, standardizes, SD memory cards]
-
A.
Memory Stick (on older models)
Memory Stick (on older models) is Sony’s proprietary flash memory card format that was commonly used in earlier digital cameras and other portable electronics for data storage.
-
B.
SSDs
SSDs (solid-state drives) are high-speed data storage devices that use flash memory instead of spinning disks to provide faster, more reliable performance in computers and other electronics.
-
C.
eMMC
eMMC (embedded MultiMediaCard) is an integrated flash storage standard commonly used in smartphones, tablets, and other consumer electronics to provide compact, low-cost, non-volatile memory.
-
D.
SanDisk
SanDisk is a prominent data storage brand known for its flash memory products such as SD cards, USB drives, and solid-state drives.
-
E.
DRAM
DRAM (Dynamic Random-Access Memory) is a type of volatile semiconductor memory widely used as the main system memory in computers and other digital devices due to its high density and relatively low cost.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SD memory cards Target entity description: SD memory cards are compact, removable flash storage devices widely used in cameras, smartphones, and other portable electronics for data storage and transfer.
-
A.
Memory Stick (on older models)
Memory Stick (on older models) is Sony’s proprietary flash memory card format that was commonly used in earlier digital cameras and other portable electronics for data storage.
-
B.
SSDs
SSDs (solid-state drives) are high-speed data storage devices that use flash memory instead of spinning disks to provide faster, more reliable performance in computers and other electronics.
-
C.
eMMC
eMMC (embedded MultiMediaCard) is an integrated flash storage standard commonly used in smartphones, tablets, and other consumer electronics to provide compact, low-cost, non-volatile memory.
-
D.
SanDisk
SanDisk is a prominent data storage brand known for its flash memory products such as SD cards, USB drives, and solid-state drives.
-
E.
DRAM
DRAM (Dynamic Random-Access Memory) is a type of volatile semiconductor memory widely used as the main system memory in computers and other digital devices due to its high density and relatively low cost.
- F. None of above. chosen
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 ⓘ UHS-I ⓘ UHS-II ⓘ UHS-III ⓘ |
| capacityClass |
SDHC
ⓘ
SDSC ⓘ SDUC ⓘ 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
ⓘ
Lexar ⓘ Panasonic ⓘ Samsung ⓘ SanDisk ⓘ Toshiba ⓘ Transcend ⓘ |
| competesWith |
CFast
ⓘ
CFexpress ⓘ CompactFlash ⓘ USB flash drives ⓘ XQD ⓘ |
| dataRetentionType | non-volatile ⓘ |
| fileSystemSupport |
FAT12
ⓘ
FAT16 ⓘ FAT32 ⓘ exFAT ⓘ |
| formFactorVariant |
microSD
ⓘ
miniSD ⓘ standard SD ⓘ |
| fullName | Secure Digital memory card ⓘ |
| governingBody | SD Association ⓘ |
| 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 ⓘ |
| standardizedBy | SD Association ⓘ |
| storageTechnology | NAND flash memory ⓘ |
| supportsSDMode | yes ⓘ |
| supportsSecurityFeatures |
CPRM
ⓘ
linked to:
DRM
password protection (optional, host dependent) ⓘ |
| supportsSPIBusMode | yes ⓘ |
| supportsWearLeveling | yes ⓘ |
| supportsWriteProtection | yes ⓘ |
| 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) ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SD memory cards Description of subject: SD memory cards are compact, removable flash storage devices widely used in cameras, smartphones, and other portable electronics for data storage and transfer.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
SDA
linked to: SD memory cards
Secure Digital
→
backwardCompatibility
→
SDHC and SDXC are backward compatible with SD host devices that support them
ⓘ
linked to: SD memory cards
linked to: SD memory cards