Testing MicroSD Express: Very Fast SD Storage

Video Description

Testing a microSD Express card, including an overview of available media, and an explanation of SD Express and other common SD card interfaces. MicroSD Express cards are now used on the new Nintendo Switch 2, but also have applications in video making and photography. My previous video “Explaining SD Cards: 2025 Update” is here: https://www.youtube.com/watch?v=HtgIHfqQiC8 The Sandisk 256GB microSD Express card tested in this video can be found on Amazon US here: https://amzn.to/4kYDxQK and on Amazon UK here: https://amzn.to/4kYDCUx The Sandisk Pro SD Express card reader I tested is on Amazon US here: https://amzn.to/3ZU7kBV And on Amazon UK here: https://amzn.to/4mWqIYV The PNY microSD Express card I mentioned are on Amazon US here: https://amzn.to/4kF0oRx and Amazon UK here: https://amzn.to/45SIIxg Please note that the above are affiliate links, and that I earn a commission from all qualifying purchases. The Lexar microSD Express cards I mentioned are described on the Lexar website here: https://americas.lexar.com/product/lexar-play-pro-microsdxc-express-card/ The Nintendo licensed SanDisk and Samsung SD Express card are here -- but all of the above will work just fine in a Nintendo Switch 2: https://www.nintendo.com/en-gb/Hardware/Nintendo-Switch-2/Nintendo-Switch-2-MicroSD-Express-cards-2785637.html The datasheets I mentioned in the video are available as follows: SanDisk (non Nintendo) microSD Express card: https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/sandisk/product/memory-cards/microsd-express/data-sheet-microsd-express.pdf Samsung (Nintendo licensed) MicroSD Express card: https://download.semiconductor.samsung.com/resources/data-sheet/2025_Datasheet_Samsung_microSD_Express_Card_256GB_for_Nintendo_Switch_2_10149520072407.pdf PNY microSD Express cards: https://www.pny.com/file%20library/company/support/product%20brochures/flash%20memory%20cards/pny-microsd-express-class-10-u3-v30-a1-microsd.pdf Information on ThermAdapt, and other SanDisk SD card technologies, is here: https://shop.sandisk.com/en-gb/topics/memory-cards/sandisk-memory-card-innovation The SD Association page I showed relating to SD 9.1 and thermal management (and also other things) is here: https://www.sdcard.org/press/thoughtleadership/sd-9-1-specification-introduces-new-speed-classes-and-next-level-performance-features-2/ And finally, the full 9.1 SD Specification from the SD Association, which also introduced SD Express speed classes, is here: https://www.sdcard.org/pdf/SDExpressSpeedClassSD9_1Specification.pdf More videos on computing and related topics can be found at: http://www.youtube.com/@ExplainingComputers And more videos on film and other making, plus retro tech, can be found on my Christopher Barnatt channel: http://www.youtube.com/@ChristopherBarnatt Chapters: 00:00 Titles & Intro 01:07 SD Express Cards 03:30 SD Interfaces 06:51 SD Express Reader 08:30 CrystalDiskMark 09:48 Large Copy Tests 14:31 Heat & Apps 16:19 The Express Option #SDExpress #NintendoSwitch2 #microSD #Express #SanDisk #ExplainingComputers