New SD card format will transfer at nearly a gigabyte per second

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The SD Association has published a new version 7.0 specification for SD cards, with updates in two areas significantly increasing the potential capacity of the future memory cards, as well as boosting the data transfer rates to almost 1 gigabyte per second.




The first major update is called "SD Express," which introduces PCIe 3.0 and NVMe 1.3 interface support to speed up connectivity between the card's memory and the device holding the card. According to the specifications, the card will be capable of transfer speeds of up to 985 megabytes per second, though it is unclear if this will apply to both read and write speeds, or just for reading data.

This high-speed connectivity will be possible using a PCIe interface, but cards using the specification will still be usable with older card readers. As SD Express includes support for SD UHS-I interfaces, but crucially not UHS-II nor UHS-III, it will offer up to 104 megabyte-per-second speeds in legacy readers that support these legacy interfaces.

The other update, "SD Ultra Capacity," is an expansion of available storage. While current-generation SD cards can offer a maximum capacity of 2 terabytes, the new standard advises Ultra Capacity cards can offer up to 128 terabytes of storage.




According to the SD Association, SD Express will be geared towards those needing to move large amounts of data, with applications including capturing super slow motion video, RAW continuous burst modes, 8K video capture and playback, 360-degree videos, gaming, automotive, and Internet of Things devices.

"With SD Express, we're offering an entirely new level of memory card with faster protocols turning cards into a removable SSD," said SD Association president Hiroyuki Sakamoto. "SD 7.0 delivers revolutionary innovations to anticipate the needs of forthcoming devices and content rich and speed hungry applications."

While the announcement of the specification is promising, it will be some time before the benefits will be seen by the general public. Not only will SD cards using the standard need to reach the market, it will also require compatible card readers to be available in order to hit the highest speeds.

Consumers are also likely to encounter memory cards on the market offering only one of the two updates in the future. The SD Association's example logos for cards using the specification indicate if they have SDUC or SD Express, so it is plausible a high-capacity card could choose to enable the more commonplace UHS-II and UHS-III instead of SD Express.
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Comments

  • Reply 1 of 24
    SpamSandwichSpamSandwich Posts: 30,863member
    If such a card is capable of 128 terabytes, that will make continuous HD recording everywhere commonplace.
    Alex1Nwaverboywatto_cobra
  • Reply 2 of 24
    rob53rob53 Posts: 2,007member
    If such a card is capable of 128 terabytes, that will make continuous HD recording everywhere commonplace.
    ... and how are they going to fit 128TB on an SD card? 
    watto_cobra
  • Reply 3 of 24
    polymniapolymnia Posts: 902member
    rob53 said:
    If such a card is capable of 128 terabytes, that will make continuous HD recording everywhere commonplace.
    ... and how are they going to fit 128TB on an SD card? 
    Probably the same way they did 20 years ago when some else asked how we’d ever get to 128GB.
    chiaAlex1Nmuthuk_vanalingamtoysandmewaverboywatto_cobra
  • Reply 4 of 24
    SpamSandwichSpamSandwich Posts: 30,863member
    rob53 said:
    If such a card is capable of 128 terabytes, that will make continuous HD recording everywhere commonplace.
    ... and how are they going to fit 128TB on an SD card? 
    How do they fit multiple terabytes on cards now? Continuous improvements.
    Alex1Nwaverboywatto_cobra
  • Reply 5 of 24
    olsols Posts: 35member
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    williamlondonAlex1Nmuthuk_vanalingam
  • Reply 6 of 24
    melgrossmelgross Posts: 31,491member
    And Apple should put this in their machines.
    SpamSandwichAlex1Nmuthuk_vanalingamwatto_cobra
  • Reply 7 of 24
    backstabbackstab Posts: 138member
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    Why would you need to use up a dedicated space on a computer for an SD-Card slot, just to use an SD card?
    williamlondonwatto_cobra
  • Reply 8 of 24
    nunzynunzy Posts: 662member

     Apple always skates to where the puck is going to be. And the puck is in iCloud.

    I am very glad that iPhone has no SD card slot. That is a bigger improvement over Android then when Apple eliminated the headphone jack.
  • Reply 9 of 24
    melgrossmelgross Posts: 31,491member
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    That was Apple’s decision, they can always change their minds if people make a big enough deal about it.
    muthuk_vanalingamwatto_cobra
  • Reply 10 of 24
    mwhitemwhite Posts: 184member
    It would be nice if we could use it as a backup for Time Machine...
    watto_cobra
  • Reply 11 of 24
    lkrupplkrupp Posts: 6,819member
    melgross said:
    And Apple should put this in their machines.
    melgross said:
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    That was Apple’s decision, they can always change their minds if people make a big enough deal about it.
    This will probably show up on Thunderbolt 3 docks and not Apple machines.
    tmayanomeAlex1Nwatto_cobra
  • Reply 12 of 24
    boltsfan17boltsfan17 Posts: 2,158member
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    How is the article not relevant? There are a ton of pro photographers that use Macs. Sure it's unfortunate Apple removed the SD card slot but there are cheap adapters to use with newer Mac's. 
    Alex1Nwatto_cobra
  • Reply 13 of 24
    wizard69wizard69 Posts: 12,720member
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    Hopefully Apple corrects their mistake with respect to SD cards.  Sadly i suspect Apple will see this as a cheape easy way to upgrade a machines storage and with Apple cheap and easy can never happen.   
  • Reply 14 of 24
    Mike WuertheleMike Wuerthele Posts: 4,357administrator
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    iMac Pro. It's UHS-II.


    edited July 2018 SpamSandwichchiaanomewilliamlondonmacxpressAlex1Nmuthuk_vanalingamwatto_cobra
  • Reply 15 of 24
    tallest skiltallest skil Posts: 43,399member
    People aren’t very… can I say smart? “People don’t pay much attention” is more tactful. “Higher number is better,” “bigger is better”; that sort of thing helps them understand technology when they know nothing about it. Why is SDXC a worse format than SDUC? Why couldn’t they have made it SDZC or SDXX? It looks to the layman like a regression. There’s the argument of “if your needs demand that you care, you’ll already know” and then there’s “why the hell shouldn’t we just strive to make the best things for everyone for the sole sake of pushing humanity forward.” Both battery and storage tech feel like they’re spinning their wheels…
    Alex1N
  • Reply 16 of 24
    hexclockhexclock Posts: 549member
    rob53 said:
    If such a card is capable of 128 terabytes, that will make continuous HD recording everywhere commonplace.
    ... and how are they going to fit 128TB on an SD card? 
    How do they fit multiple terabytes on cards now? Continuous improvements.
    rob53 said:
    If such a card is capable of 128 terabytes, that will make continuous HD recording everywhere commonplace.
    ... and how are they going to fit 128TB on an SD card? 
    How do they fit multiple terabytes on cards now? Continuous improvements.
    I must admit, my eyes popped out of my skull when I read 128 TB. Incredible, and it bodes well for future solid state storage. 
    SpamSandwichwatto_cobra
  • Reply 17 of 24
    anomeanome Posts: 1,260member

    backstab said:
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    Why would you need to use up a dedicated space on a computer for an SD-Card slot, just to use an SD card?

    More to the point, why would you want to have a dedicated space on your computer for an SD-Card slot that can't take full advantage of the new SD-Cards? Instead, you can buy an adapter that connects via USB 3.1 Gen 2 or Thunderbolt 3 which have sufficient bandwidth to support 1GB/s.

    After all, it's not like you'd buy a whole new computer just to work with the new SD-Card standard, would you?

    Alex1Nwatto_cobra
  • Reply 18 of 24
    melgrossmelgross Posts: 31,491member
    It isn’t an SD slot for phones that the really question here, it’s for Macs. And Macs should have the latest version.
    Alex1NSpamSandwichwatto_cobra
  • Reply 19 of 24
    nunzynunzy Posts: 662member
    anome said:
    backstab said:
    ols said:
    Nice tech however since the iPhone never featured an SD-Card slot and newer macs no longer have an SD-Card slot this article sadly seems little relevant to apple users.
    Why would you need to use up a dedicated space on a computer for an SD-Card slot, just to use an SD card?

    More to the point, why would you want to have a dedicated space on your computer for an SD-Card slot that can't take full advantage of the new SD-Cards? Instead, you can buy an adapter that connects via USB 3.1 Gen 2 or Thunderbolt 3 which have sufficient bandwidth to support 1GB/s.

    After all, it's not like you'd buy a whole new computer just to work with the new SD-Card standard, would you?

      Dongles are always the best bet.
  • Reply 20 of 24
    macxpressmacxpress Posts: 4,794member
    I find it odd how everyone here seems to think every professional uses a MacBook Pro. Except for the Mac Pro, every desktop sold today has an SD Card slot inside it. How many professional photographers do all of their work on a laptop with a small(er) screen versus a 27" iMac, or a Mac Pro with a large professional display attached to it? 
    farmboywatto_cobrapolymnia
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