Uploaded June 2025 | Updated September 2026, 2 weeks ago
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: youtube.com/watch?v=HtgIHfqQiC8
The Sandisk 256GB microSD Express card tested in this video can be found on Amazon US here: amzn.to/4kYDxQK and on Amazon UK here: amzn.to/4kYDCUx
The Sandisk Pro SD Express card reader I tested is on Amazon US here: amzn.to/3ZU7kBV And on Amazon UK here: amzn.to/4mWqIYV
The PNY microSD Express card I mentioned are on Amazon US here: amzn.to/4kF0oRx and Amazon UK here: 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: 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: 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: 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: download.semiconductor.samsung.com/resources/data-sheet/2025_Datasheet_Samsung_microSD_Express_Card_256GB_for_Nintendo_Switch_2_10149520072407.pdf
PNY microSD Express cards: 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: 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:
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: sdcard.org/pdf/SDExpressSpeedClassSD9_1Specification.pdf
More videos on computing and related topics can be found at:
youtube.com/@ExplainingComputers
And more videos on film and other making, plus retro tech, can be found on my Christopher Barnatt channel: 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
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: youtube.com/watch?v=HtgIHfqQiC8
The Sandisk 256GB microSD Express card tested in this video can be found on Amazon US here: amzn.to/4kYDxQK and on Amazon UK here: amzn.to/4kYDCUx
The Sandisk Pro SD Express card reader I tested is on Amazon US here: amzn.to/3ZU7kBV And on Amazon UK here: amzn.to/4mWqIYV
The PNY microSD Express card I mentioned are on Amazon US here: amzn.to/4kF0oRx and Amazon UK here: 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: 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: 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: 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: download.semiconductor.samsung.com/resources/data-sheet/2025_Datasheet_Samsung_microSD_Express_Card_256GB_for_Nintendo_Switch_2_10149520072407.pdf
PNY microSD Express cards: 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: 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:
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: sdcard.org/pdf/SDExpressSpeedClassSD9_1Specification.pdf
More videos on computing and related topics can be found at:
youtube.com/@ExplainingComputers
And more videos on film and other making, plus retro tech, can be found on my Christopher Barnatt channel: 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
