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  • ballsystemlord - Thursday, April 11, 2024 - link

    I'm kinda surprised it doesn't support A1 or A2 class random access speeds.
  • Kamen Rider Blade - Thursday, April 11, 2024 - link

    I wish it supported UHS III = 624 MB/s.
    It's "Fast Enough" w/o going into CF express territory.

    The SD Card association needs to go with UHS III and give up on SD Express.

    CF Express was purposely designed for PCIe, while SD Express is a kludge to say "Me too!".

    It's really not necessary.

    UHS III = 624 MB/s is FAST ENOUGH, then focus on capacity and cost effectiveness per GiB.
  • ballsystemlord - Friday, April 12, 2024 - link

    Isn't V30 and UHS III the same thing?
  • Hresna - Saturday, April 13, 2024 - link

    No, V30 is a speed class specifically for video-capture and many v30 cards are only UHS-I, which is the physical interface. UHS-II has an extra row of pins enabling faster transfers. uHS-II cards also come in V60 and V90 speeds, the latter being niche and very niche and expensive. Most modern camera codecs would need v30 as a minimum for their most compressed “broadcast quality” codecs, and many will need cfexpress or ssd speeds. I’d be very surprised if you could shoot 8k on a v30 card and not have dropped frames connstantly.
  • ballsystemlord - Monday, April 15, 2024 - link

    Thanks!
  • thomasjkenney - Friday, April 12, 2024 - link

    This isn't a market I've watched recently, or much at all. I find it hilarious these devices have a mechanical write-protect toggle, just like a 3.5" floppy!
  • CaptainBrowncoat - Saturday, April 13, 2024 - link

    Considering SD cards (not the newer mini/mico/TF variants) have had them from the beginning - which overlaps in the timeline of common usage for floppy disks - they are merely following the spec. I don't know why you find it so amusing - they definitely have their uses for certain situations.
  • Samus - Saturday, April 13, 2024 - link

    Absolutely. I have a TrekStor USB3 external SSD that has a write-protect toggle, and purchased it just for that reason. I carry around a lot of warez\software cracks\etc and the read-only toggle prevents security software from removing "infected" files.
  • PeachNCream - Tuesday, April 16, 2024 - link

    I haven't heard someone use the word warez in well over a decade!
  • Einy0 - Sunday, April 14, 2024 - link

    I find it a bit paradoxical that most m.2 drives top out at 2TB, but in the near future you'll be able to buy a 4TB SD Card.
  • boozed - Sunday, April 14, 2024 - link

    You can cram a lot of memory into a very small space if you're willing to give up speed and endurance.
  • nandnandnand - Monday, April 15, 2024 - link

    There's already a real 2 TB microsd card on the market, so a big 4 TB card is no surprise.

    As for M.2 2280, maybe 16 TB is on the way soon.
  • back2future - Monday, April 15, 2024 - link

    [ a difficulty with SD cards is, that with even TB of storage (sdxc 1TB(non standard 2TB), sduc up to 128TB, theoretically) there is no 'public/open source' monitoring tool (from my knowledge) for storage cells wear, like S.M.A.R.T standard for Sata/Pcie hdd&ssd (?)
    One has to rely on the controller (bridge) ic and even with durable nand, a controller ic can get pretty much temperature with up to ~3.85GB/s, while Uhs-II sd cards on a ~310MB/s might need ~2.8W (on bus speed mode HD312 (lower bus speed with SDR104/FD156) ), there are stacked controller&nand devices, also (?)
    An advantage for sd cards is low standby consumption ~0.2mA. ]
  • back2future - Monday, April 15, 2024 - link

    [ 4TB=~4*1024²MB on 104MB/s results to ~11hrs for copying data to(&from?) sduc on SDR104 bus mode, for 170MB/s that's ~6.8hrs (?) ]
  • Schugy - Tuesday, April 16, 2024 - link

    While the data density is impressive I'd still prefer to see availability of SDSDXFN-256G / SDSQXFN-256G SDExpress and MicroSDExpress cards.

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