Category:Secure Digital
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English: Secure Digital (SD) is a flash memory card format. It is based on the older Multi Media Card (MMC) format, but adds several features including write-protect switches. Standard SD cards measure 32 mm by 24 mm by 2.1 mm. There are several revisions of the original standard offering smaller sizes and/or improved performance.
Category:Data storage device for digital camera
Category:Memory cards
Category:Flash memoryPages in category "Category:Secure Digital"
- Secure Digital Card
- Category:Secure Digital cards by brand
- Category:Secure Digital Logos
- Category:SDIO devices
- Category:Ultra High Speed
- Category:MicroSD
- Category:MiniSD
- Category:SD card adapters
- Category:GameCube SD Card Adapter
- Category:Lightning to SD Card Camera Reader
- Category:SD players
- Category:SD ATA adapters
- Category:SD card slots
- Category:SD card sockets
- Category:SD cards in devices
- Category:SDHC
- Category:SDXC
- Category:Wi-Fi SD cards
- File:De-SD-Karte.ogg
- File:1 GB SD card, board - Toshiba TH58NVG3D4BTG10-1026.jpg
- File:1 GB SD card, board-1024.jpg
- File:1 GB SD card, board-1025.jpg
- File:1 GB SD card, labelled by Agfa-1023.jpg
- File:15-03-06-Aufbewahrung-SD-RalfR-DSCF2690.jpg
- File:15-04-29-MMC-Karte-dscf4734-e.jpg
- File:16 megabyte SD card (2272435686).jpg
- File:2010-01-26-technikkrempel-by-RalfR-09.jpg
- File:20200530-IMGP0340.jpg
- File:2025-10-21-SanDisk-Ultra-SD-4Gb.jpg
- File:2025-10-21-SiliconPower-SD-4Gb-HC-2.jpg
- File:2025-10-21-SiliconPower-SD-4Gb-HC-6.jpg
- File:8GB media comparison.jpg
- File:ADATA AD4GTFC4 2012.jpg
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- File:Arduino SD Card Data Logger.svg
- File:Arduino SD card module.svg
- File:Arduino with SD card module.svg
- File:Caprim affin 110818-16549 E hsk.jpg
- File:CD et carte SD.jpg
- File:CFexpress Type B and SD slots on Nikon Z8 1.jpg
- File:CFexpress Type B and SD slots on Nikon Z8 2.jpg
- File:Chicago Auto Show 2010 (4348312093).jpg
- File:Crucial SD Cards 2007 1GB and 2GB (front).jpg
- File:Crucial SD Cards 2007 1GB and 2GB (rear).jpg
- File:Crystal128-sd-mmc-mount.svg
- File:Crystal128-sd-mmc-unmount.svg
- File:Czytnik kart.jpg
- File:DamagedSD.png
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- File:Digital Memories (232-366) - Flickr - timsackton.jpg
- File:Digitale medier.jpg
- File:Eye-Fi Pro X2 16GB.JPG
- File:Eye-Fi Wifi Card.jpg
- File:Eyefi card.JPG
- File:Flash cards.jpeg
- File:Flashmemory.jpg
- File:FM-трансмиттер, USB-флеш-накопитель, карта памяти SD.JPG
- File:Gigastone SD or microSD card pack spec tag CHT 2015-06.jpg
- File:Goodram-sd-memory.jpg
- File:HK 2010 Computer Festival IT Show shop SD Memory Cards.JPG
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- File:HK 中環 德輔道中 Des Voeux Road Central shop SD Cards July 2021 SS2 03.jpg
- File:Human-gnome-dev-media-sdmmc.svg
- File:Hyundai Map SD.jpg
- File:IFA2012 Intenso SDHC.jpg
- File:K'2 PKparis Android USB Key.png
- File:Karta pamięci, zdjęcie testowe.jpg
- File:Kingston TravelLite 20060315.jpg
- File:Kioxia SDHC32GB.jpg
- File:Lexar microSD to SD Adapter.png
- File:Lexar Professional 1000x 128GB SDXC UHS-II Card.jpg
- File:Maxell SDHC 32GB card 20200814.jpg
- File:Mediafo PSd 512MB.jpg
- File:Memory Card and SD Card and Ballpoint.jpg
- File:MemoryCard.svg
- File:Micro sd adapter opened.jpg
- File:MicroSD MemoryCard 002.jpg
- File:MicroSD to SD adapter, disassembled.png
- File:MiNe-5DII 100-8216U (4815958258).jpg
- File:MiNe-5DII 100-8228U (4815339007).jpg
- File:Mini SD card pinning.jpg
- File:MiniSD MMC SD old memory card (52504900986).jpg
- File:Mio 168RS, Mio Map 64MB and a stylus 20051218.jpg
- File:MMC card vs SDHC card thickness.jpg
- File:MMC card vs SDHC card undersides angle.jpg
- File:MMC-SD-miniSD-microSD-Color-Numbers-Names.gif
- File:Nikon en-el15 and Vgen SDHC 16gb.JPG
- File:Objects - misc (30729728824).jpg
- File:Objects - misc (30761247583).jpg
- File:Objects - misc (31455070061).jpg
- File:Panther tank Model (World Tank Museum).jpg
- File:PC Engines APU3B4 - 1 Top.jpg
- File:Person holding a broken SD card.jpg
- File:Play-Yan.jpg
- File:PNY SD card.jpg
- File:PNY SDHC card.jpg
- File:Power SD card 256 MB (1).jpg
- File:Power SD card 256 MB (2).jpg
- File:Pretec 16GB SDHC without cover 20090420.jpg
- File:Pretec 32GB SDHC 20090713.jpg
- File:RADIUS SDHC 8GB card - 1.jpg
- File:RADIUS SDHC 8GB card - 2.jpg
- File:RecoNdata SDCARD.jpg
- File:Ricoh Card Reader Controller.jpg
- File:RNSE SDCard.JPG
- File:Samsung 128 Micro SD Card.jpg
- File:SAMSUNG SD CARD PRO PLUS (3).jpg
- File:SAMSUNG SD CARD PRO PLUS (4).jpg
- File:SAMSUNG SD CARD PRO PLUS 256 GB (2021 EDITION) FRONT.jpg
- File:SAMSUNG SD CARD PRO PLUS 256 GB (2021 EDITION) REAR.jpg
- File:SAMSUNG SD CARD PRO PLUS 512 GB (2021 EDITION) FRONT.jpg
- File:SAMSUNG SD CARD PRO PLUS 512 GB (2021 EDITION) REAR.jpg
- File:SAMSUNG SD CARD PRO PLUS.jpg
- File:SAMSUNG SD CARD PRO ULTIMATE 512 GB FRONT.jpg
- File:SAMSUNG SD CARD PRO ULTIMATE 512 GB REAR.jpg
- File:SanDisk Extreme microSDHC Card, 32GB.png
- File:SanDisk Extreme Pro SDXC UHS-I U3 V30 256GB Card.png
- File:SanDisk Ultra microSDHC card, 32GB.png
- File:SD Card (50291991761).jpg
- File:SD card adapter.jpg
- File:SD card adapters.jpg
- File:SD Card and case my cards.JPG
- File:SD card from Duck Boat digital video recorder system (42774723485).jpg
- File:SD card label.jpg
- File:SD CARD moteur et stockage.jpg
- File:Sd card open on square paper 01.jpg
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- File:Sd card open on square paper 03.jpg
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- File:Sd card open on square paper 05.jpg
- File:Sd card open on square paper 06.jpg
- File:SD card pinning.jpg
- File:SD Card SDC-32M, 32MB.jpg
- File:SD card unlocked and locked.svg
- File:Sd cards 1gb.jpg
- File:SD cards, classic and UHS-II connector.jpg
- File:SD cards.jpg
- File:SD Cards.svg
- File:SD Contacts.jpg
- File:SD Express Highest Speed Card Standard.jpg
- File:Sd insides.jpg
- File:Sd insides.png
- File:SD memory card internals 1 GB.jpg
- File:SD memory cards.jpg
- File:SD Memory.jpg
- File:Sd ninisd microsd.jpg
- File:Sd Pins.png
- File:SD Pins.svg
- File:Sd-card-1377140.svg
- File:SD-extreMEmory 2GB alt innen.jpg
- File:SD-Karte Eye-Fi 16G geöffnet.JPG
- File:SD-microSD adaptor.jpg
- File:Sdadaptersandcards.jpg
- File:Sdcard.svg
- File:SDIO Vector.svg
- File:Secure digital card usb-adapter 1.jpg
- File:Secure digital card usb-adapter 2.jpg
- File:Secure-digital-card-256mb.png
- File:SecureDigitalCard.svg
- File:Silicon Power BI1001614397G face.jpg
- File:Silicon Power BI1001614397G rear.jpg
- File:Size Comparison.jpg
- File:Smart Media 128mb SD card.jpg
- File:Sony RX100 III battery memorycard.jpg
- File:Speicherkarten-by-RalfR-06.jpg
- File:Storage evolution.JPG
- File:Storage size comparison.jpg
- File:Tomtom One 1st Edition SD Karte.jpg
- File:USB-SD-Cards.jpg
- File:What Is SSL Certificate How Does It Work.png
- File:Wii U front panel opened.jpg
- File:ΜSD-SD adapter opened.png
- File:Контакт карты памяти с контактной площадкой адаптера.png
- File:Контактная площадка адаптера SD-карты.png
- File:Контактная площадка адаптера карт-памяти.png
- File:మెమరి కార్డ్ memory card for raspberry pi.JPG
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