SD card (English Wikipedia)

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androidcentral.com (Global: 5,895^th place; English: 3,930^th place)

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apple.com (Global: 67^th place; English: 64^th place)

support.apple.com

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archive.today (Global: 14^th place; English: 14^th place)

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arrow.com (Global: low place; English: low place)

static6.arrow.com

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arstechnica.com (Global: 388^th place; English: 265^th place)

Cunningham, Andrew (April 3, 2025). "Explaining MicroSD Express cards and why you should care about them". Ars Technica. Retrieved June 30, 2025.
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audioholics.com (Global: low place; English: low place)

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betanews.com (Global: low place; English: 7,673^rd place)

Conneally, Tim (March 16, 2011). "Lexar ships 128 GB Class 10 SDXC card; March 2011". Betanews.com. Archived from the original on November 11, 2023. Retrieved January 22, 2024.

books.google.com (Global: 3^rd place; English: 3^rd place)

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bunniestudios.com (Global: low place; English: low place)

bunnie. "On MicroSD Problems". bunniestudios.com. Archived from the original on September 11, 2024. Retrieved January 22, 2024.

businesswire.com (Global: 615^th place; English: 407^th place)

"Datacard Group, DeviceFidelity and U.S. Bank Announce New Smart Card and Mobile Payment Program" (Press release). Datacard Group. January 14, 2013. Archived from the original on August 20, 2021. Retrieved July 28, 2021 – via Businesswire.
"Wells Fargo to Roll Out Mobile Payments Pilot; Visa Demonstrating Capability at CARTES 2010 | Business Wire". Archived from the original on October 14, 2020. Retrieved October 14, 2020.

cinema5d.com (Global: low place; English: low place)

Chaundy, Fabian (February 26, 2016). "New Video Speed Class for SD Cards". cinema5D. Archived from the original on March 7, 2016. Retrieved March 3, 2016.

cr80news.com (Global: low place; English: low place)

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dd-wrt.com (Global: low place; English: low place)

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digirati.com.br (Global: low place; English: low place)

oss.digirati.com.br

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digitalcameraworld.com (Global: low place; English: low place)

Andrews, Ben (October 25, 2022). "Flash back: the history of the SD card, and why we think it deserves more love". Digital Photography Review. Retrieved June 19, 2024.

dpreview.com (Global: 3,581^st place; English: 2,330^th place)

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dramexchange.com (Global: low place; English: low place)

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dtt8.com (Global: low place; English: low place)

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eggheadcafe.com (Global: low place; English: low place)

"WinXP SP3 cannot read 4 GB SD card in multicard reader". Egg head cafe. Archived from the original on July 30, 2012. Retrieved August 22, 2010.

embeddedarm.com (Global: low place; English: low place)

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engadget.com (Global: 466^th place; English: 349^th place)

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Rojas, Peter (March 2, 2004). "T-Flash: aka 'Yet Another Memory Card Format'". Engadget. Archived from the original on May 2, 2019. Retrieved June 19, 2025.
"SD cards branded with an upper-case 'I' are faster, yo". Engadget. June 24, 2010. Archived from the original on August 28, 2010. Retrieved August 22, 2010.
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"SDXC memory cards promise 2 TB of storage, 300 MBps transfer". Engadget. January 7, 2009. Archived from the original on February 11, 2010. Retrieved August 22, 2010.

espacenet.com (Global: 800^th place; English: 676^th place)

worldwide.espacenet.com

US patent 7827370

fixfakeflash.wordpress.com (Global: low place; English: low place)

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genesyslogic.com (Global: low place; English: low place)

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ghostarchive.org (Global: 32^nd place; English: 21^st place)

"Using SD Memory Cards is Easy". SD Association. June 22, 2010. Archived from the original on October 29, 2021. Retrieved January 2, 2014.
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"Case Study: Mobile Access Pilot at Arizona State University". youtube.com. October 14, 2011. Archived from the original on October 29, 2021. Retrieved July 28, 2021.

gizmodo.com (Global: 474^th place; English: 329^th place)

Buchanan, Matt (October 1, 2008). "Giz Explains: An Illustrated Guide to Every Stupid Memory Card You Need". Retrieved June 19, 2025.

goughlui.com (Global: low place; English: low place)

Lui, Gough (January 16, 2014). "SD Card Sequential, Medium & Small Block Performance Round-Up". Gough's techzone. Archived from the original on December 8, 2015. Retrieved November 29, 2015. Variations in 4k small block performance saw a difference of approximately 300-fold between the fastest and slowest cards. Distressingly, many of the tested cards were mediocre to poor on that metric, which may explain why running updates on Linux running off SD cards can take a very long time.

hackaday.com (Global: low place; English: 7,505^th place)

List, Jenny (November 29, 2017). "Ask Hackaday: How On Earth Can A 2004 MP3 Player Read An SDXC Card?". Hackaday. Archived from the original on December 21, 2018. Retrieved December 21, 2018.
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heise.de (Global: 766^th place; English: 3,515^th place)

Schnurer, Georg (February 28, 2007). "Gefälschte SD-Karten" [Fake SD-cards] (in German). Heise mobile – c't magazin für computertechnik. Archived from the original on June 23, 2013. Retrieved June 7, 2013.
Feddern, Boi (March 18, 2013). "Smartphones wählerisch bei microSDHC-Karten" (in German). Heise mobile – c't magazin für computertechnik. Archived from the original on January 1, 2019. Retrieved June 9, 2013.
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hjreggel.net (Global: low place; English: low place)

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ign.com (Global: 53^rd place; English: 44^th place)

Anderson, Robert (April 4, 2025). "You Can Already Buy Switch 2 Compatible MicroSD Express Cards". IGN. Retrieved April 9, 2025.

itmedia.co.jp (Global: 624^th place; English: 4,149^th place)

"HD録画のカムコーダ、DVD-R内蔵ミニノート......会場で見かけた新製品". ITmedia NEWS. March 22, 2004. Archived from the original on September 11, 2024. Retrieved June 19, 2025.

ixbt.com (Global: 3,849^th place; English: low place)

"Представлена первая в мире карта памяти MicroSDXC ёмкостью 2 ТБ". iXBT.com (in Russian). September 29, 2022. Archived from the original on January 12, 2025. Retrieved April 3, 2025.

jeffgeerling.com (Global: low place; English: low place)

Geerling, Jeff (July 22, 2019). "A2-class microSD cards offer no better performance for the Raspberry Pi". jeffgeerling.com. Retrieved June 5, 2025.

kingston.com (Global: low place; English: low place)

"Canvas Go! Plus Class 10 microSD Cards – V30, A2 – 64 GB–512 GB". Kingston Technology Company. Retrieved April 10, 2021.
"Flash Memory Cards and X-Speed Ratings". Kingston. Archived from the original on July 2, 2017. Retrieved August 5, 2017.

koolspan.com (Global: low place; English: low place)

"iPhone Voice Encryption from KoolSpan and DeviceFidelity". koolspan.com. March 11, 2013. Archived from the original on January 27, 2021. Retrieved July 28, 2021.

lexar.com (Global: low place; English: low place)

"Lexar Professional 1066x microSDXC UHS-I Card SILVER Series". Lexar. Archived from the original on April 10, 2021. Retrieved April 10, 2021.

linux.com (Global: low place; English: 7,194^th place)

"Sharp Linux PDA promotes the use of proprietary SD card, but more open MMC works just fine". Linux.com. June 14, 2007. Archived from the original on December 15, 2010. Retrieved August 22, 2010.

lofi-gaming.org.uk (Global: low place; English: low place)

deKay (January 15, 2015). "Updated: How to upgrade your 3DS SD card, to 64 GB and beyond". Lofi-Gaming. Archived from the original on December 21, 2018. Retrieved December 21, 2018.

lwn.net (Global: 4,423^rd place; English: 2,925^th place)

"Optimizing Linux with cheap flash drives". Linux Weekly News. Archived from the original on October 7, 2013. Retrieved April 11, 2011.

memorycard-lab.com (Global: low place; English: low place)

"UHS-II camera list". memorycard-lab.com. Retrieved January 4, 2025.

microsoft.com (Global: 153^rd place; English: 151^st place)

support.microsoft.com

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"939772 – Some Secure Digital (SD) cards may not be recognized in Windows Vista". Support. Microsoft. May 15, 2008. Archived from the original on February 9, 2010. Retrieved August 22, 2010.
"949126 – A Secure Digital High Capacity (SDHC) card is not recognized on a Windows Vista Service Pack 1-based computer". Support. Microsoft. February 21, 2008. Archived from the original on January 9, 2010. Retrieved August 22, 2010.
"Windows Phone 7 – Microsoft Support". support.microsoft.com. Archived from the original on May 3, 2016. Retrieved January 22, 2023.

docs.microsoft.com

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nccgroup.com (Global: low place; English: low place)

research.nccgroup.com

"When microSD Cards Turn Against You". NCC Group. May 19, 2022.

nfctimes.com (Global: low place; English: low place)

"MicroSD Vendor Announces Taiwanese M-Payment Trial Using HTC NFC Phones". NFC Times. Archived from the original on April 27, 2016. Retrieved February 23, 2016.

nfcw.com (Global: low place; English: low place)

Clark, Sarah (November 11, 2009). "DeviceFidelity launches low cost microSD-based NFC solution". nfcw.com. Archived from the original on March 4, 2021. Retrieved July 28, 2021.
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Clark, Sarah (August 19, 2010). "Bank of America to run NFC payments trial in New York". nfcw.com. Archived from the original on January 25, 2021. Retrieved July 28, 2021.
Clark, Sarah (September 11, 2012). "Moneto to bring NFC payments to Europe". nfcw.com. Archived from the original on January 25, 2021. Retrieved July 28, 2021.

nfcworld.com (Global: low place; English: low place)

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pcmag.com (Global: 1,060^th place; English: 700^th place)

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"The Best microSD Cards for 2024". PCMag. December 15, 2024. Retrieved June 20, 2025.

pcworld.com (Global: 1,317^th place; English: 873^rd place)

Henchman, Mark (February 25, 2019). "The microSD Express standard combines PCI Express speeds, microSD convenience". Archived from the original on August 8, 2019. Retrieved March 18, 2019.

phonescoop.com (Global: low place; English: low place)

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phoronix.com (Global: 4,683^rd place; English: 3,096^th place)

"The Initial exFAT Driver Queued For Introduction With The Linux 5.4 Kernel". phoronix.com. August 30, 2019. Archived from the original on December 18, 2019. Retrieved February 5, 2020.

prweb.com (Global: 3,093^rd place; English: 1,787^th place)

"DeviceFidelity and SpringCard Launch moneto, the World's First Multi-Platform Mobile Wallet for iPhone and Android at CES" (Press release). DeviceFidelity. January 10, 2012. Archived from the original on January 13, 2012. Retrieved July 28, 2021 – via Cision.

raspberrypi.org (Global: low place; English: 9,998^th place)

"Raspberry Pi forum: SD card benchmarks". Archived from the original on August 13, 2014. Retrieved August 12, 2014.

retrohax.net (Global: low place; English: low place)

"SIO2SD for 8-bit Atari". May 9, 2016. Archived from the original on October 13, 2019. Retrieved October 13, 2019.

rfid-ready.com (Global: low place; English: low place)

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rusolut.com (Global: low place; English: low place)

"New adapters for monolithic devices!". September 21, 2017. Archived from the original on February 4, 2018. Retrieved September 11, 2024.

sandisk.com (Global: low place; English: low place)

sandisk.com

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"slotRadio". SanDisk. Archived from the original on November 24, 2011. Retrieved November 27, 2011.
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documents.sandisk.com

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sdcard.org (Global: low place; English: low place)

"Copyright Protection for Digital Data (CPRM)". SD Association. Archived from the original on April 29, 2025. Retrieved April 29, 2025.
"About the SD Association". Retrieved June 19, 2025.
"SDXC SIGNALS NEW GENERATION OF REMOVABLE MEMORY WITH UP TO 2 TERABYTES OF STORAGE" (PDF). sdcard.org. SD Association. Archived (PDF) from the original on September 11, 2024. Retrieved December 30, 2023.
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"SD Association Doubles Bus Interface Speeds with UHS-III" (PDF). February 23, 2017. Archived from the original (PDF) on February 24, 2017. Retrieved February 23, 2017.
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"Video Speed Class: The new capture protocol of SD 5.0" (PDF). SD Association. February 2016. Archived from the original (PDF) on December 23, 2016. Retrieved March 3, 2016.
"New SD Express Specifications Introduce New Speed Classes and Next-Level Performance Features | SD Association". www.sdcard.org. October 27, 2023. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
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"Application Performance Class". SD Association. December 11, 2020. Archived from the original on November 3, 2021. Retrieved January 7, 2025.
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"Application Performance Class: The new class of performance for applications on SD memory cards (SD 5.1)" (PDF). SD Association. November 2016. Archived (PDF) from the original on November 23, 2016. Retrieved September 11, 2024.
"SD Part 1, Physical Layer Simplified Specification, Version 9.00" (PDF). SD Association. August 22, 2022. Archived (PDF) from the original on June 15, 2025.
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"SD Part 1, Physical Layer Simplified Specification, Version 8.00" (PDF). SD Association. September 23, 2020. Archived (PDF) from the original on June 15, 2025.
"SD Part 1, Physical Layer Simplified Specification, Version 9.10". SD Association. December 1, 2023.

secureidnews.com (Global: low place; English: low place)

"DeviceFidelity rolls out microSD payment tool". SecureIDNews. November 10, 2009. Archived from the original on May 8, 2021. Retrieved July 28, 2021.
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slashgear.com (Global: 7,835^th place; English: 5,254^th place)

Williams, Lynnae (January 9, 2024). "TF Card: What Is It, And What's It Used For?". SlashGear. Retrieved July 11, 2025.

sony.com (Global: 4,977^th place; English: 3,570^th place)

pro.sony.com

"MEAD-SD01 SDHC card adapter (Sony)". Pro.sony.com. Archived from the original on June 29, 2017. Retrieved January 2, 2014.

steves-digicams.com (Global: low place; English: low place)

"4 Features and Benefits of a Micro SD Transflash Memory Card – Steve's Digicams". steves-digicams.com. Archived from the original on January 17, 2014. Retrieved November 30, 2020.

taterli.com (Global: low place; English: low place)

"SD Part 1, Physical Layer Simplified Specification, Version 6.00" (PDF). SD Association. April 10, 2017. Archived from the original (PDF) on April 6, 2025.
"Simplified Specification" (PDF). Archived (PDF) from the original on December 18, 2020. Retrieved July 31, 2024.

techpowerup.com (Global: 4,960^th place; English: 3,052^nd place)

"A-DATA Super Info SD Card 512 MB". Tech power up. February 20, 2007. Archived from the original on May 18, 2012. Retrieved December 30, 2011.

techradar.com (Global: 1,521^st place; English: 944^th place)

Udinmwen, Efosa (May 24, 2025). "SD memory cards just hit 25—cloud storage won't kill them, and here's why they're still irreplaceable". TechRadar. Retrieved June 19, 2025.

theregister.co.uk (Global: 1,216^th place; English: 797^th place)

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theregister.com (Global: 3,700^th place; English: 2,360^th place)

"TransFlash becomes MicroSD". Archived from the original on September 11, 2024. Retrieved June 19, 2025.

theverge.com (Global: 114^th place; English: 90^th place)

"SanDisk's 1 TB microSD card is now available". theverge.com. May 15, 2019. Archived from the original on June 17, 2020. Retrieved December 19, 2019.
Gartenberg, Chain (February 25, 2019). "Memory cards are about to get much faster with new microSD Express spec". The Verge. Archived from the original on March 15, 2019. Retrieved March 18, 2019.

toshiba-memory.com (Global: low place; English: low place)

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toshiba.co.jp (Global: 9,918^th place; English: low place)

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tuxera.com (Global: low place; English: low place)

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uditagarwal.in (Global: low place; English: low place)

"Understanding SD, SDIO and MMC Interface". Retrieved June 19, 2025.

usbdev.ru (Global: low place; English: low place)

"Определение модели контроллера и памяти флешки" [Detecting controller model and memory type of flash drive] (in Russian). usbdev.ru. February 20, 2013. Archived from the original on June 24, 2023. Retrieved January 6, 2018.

usenix.org (Global: 5,990^th place; English: 3,752^nd place)

static.usenix.org

Kim, H.; Agrawal, N.; Ungureanu, C. (January 30, 2012). Revisiting Storage for Smartphones (PDF). USENIX Conference on File and Storage Technologies (FAST). NEC Laboratories America. Archived from the original (PDF) on October 10, 2012. Retrieved December 27, 2012. Speed class considered irrelevant: our benchmarking reveals that the "speed class" marking on SD cards is not necessarily indicative of application performance; although the class rating is meant for sequential performance, we find several cases in which higher-grade SD cards performed worse than lower-grade ones overall.

utexas.edu (Global: 916^th place; English: 706^th place)

users.ece.utexas.edu

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"SD Part 1, Physical Layer Simplified Specification, Version 1.10" (PDF). SD Association. April 3, 2006. Archived from the original (PDF) on June 14, 2025.

visa.com (Global: low place; English: low place)

investor.visa.com

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web.archive.org (Global: 1^st place; English: 1^st place)

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westerndigital.com (Global: low place; English: low place)

blog.westerndigital.com

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westerndigital.com

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youtube.com (Global: 9^th place; English: 13^th place)

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microsoft.com (Global: 153^rd place; English: 151^st place)

pcmag.com (Global: 1,060^th place; English: 700^th place)

pcworld.com (Global: 1,317^th place; English: 873^rd place)

phoronix.com (Global: 4,683^rd place; English: 3,096^th place)

prweb.com (Global: 3,093^rd place; English: 1,787^th place)

raspberrypi.org (Global: low place; English: 9,998^th place)

slashgear.com (Global: 7,835^th place; English: 5,254^th place)

sony.com (Global: 4,977^th place; English: 3,570^th place)

techpowerup.com (Global: 4,960^th place; English: 3,052^nd place)

techradar.com (Global: 1,521^st place; English: 944^th place)

theregister.co.uk (Global: 1,216^th place; English: 797^th place)

theregister.com (Global: 3,700^th place; English: 2,360^th place)

theverge.com (Global: 114^th place; English: 90^th place)

toshiba.co.jp (Global: 9,918^th place; English: low place)

usenix.org (Global: 5,990^th place; English: 3,752^nd place)

utexas.edu (Global: 916^th place; English: 706^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

youtube.com (Global: 9^th place; English: 13^th place)