SD Association Archives

The SD association has announced SD Express 8.0 with transfer speeds up to 4GB/sec

May 22, 2020 by John Aldred 1 Comment

Just when you think memory card speed limits are being hit, along comes the SD association to prove you wrong. This time, they’re announcing the SD Express 8.0 (SD8.0) specification which comes with transfer speeds of up to 4GB/sec (2GB/sec per lane up to two lanes). It’s built on the PCIe 4.0 standard and utilises NVM Express (NVMe) storage.

The first SD Express standard (SD7.0) was unveiled in 2018, offering transfer speeds of up to 985MB/sec, but it’s already been obsoleted by SD8.0. And the world hasn’t even adopted the SD6.0 UHS-III specification yet, either.

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New SD card standard unveiled offering up to 985MB/sec transfer speeds and 128TB capacity

Jun 27, 2018 by John Aldred Leave a Comment

Just as we start to accept UHS-II into our lives, and before UHS-III is even a real thing, a new standard hits the streets. That’s right, folks, SD Express has now been announced, offering data transfer speeds of up to 985MB/sec. It also bumps up the maximum capacity from SDCX’s 2TB to the new SDUC’s 128TB.

SD Express uses PCIe and NVMe interfaces to deliver these faster transfer speeds. To read about how the SD Association talks about SD Express, it’s almost like they want or expect people to start using these as portable SSD replacements for general use.

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New UHS-III SD Card spec offers blazing transfer speeds up to 624MB/sec

Feb 25, 2017 by John Aldred 2 Comments

Just as Sony hits the “world’s fastest” mark with their new SF-G Series UHS-II cards, the SD Association comes along and moves the goalposts. Well, this card is almost at the theoretical 312MB/sec limit of the UHS-II specification. The SD Card Association have now announced the new UHS-III specification, which doubles this limit to 624MB/sec.

With cards ever expanding in size due to the demands of today’s gear, the speed has to also increase. Even if that increase really only benefits the speed at which you can back everything up to your computer. Of course, there will be real world benefits. Now that the megapixel wars seem to have shifted from stills to video, the SDA specifically cite 8K footage as one of their considerations.

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Next SD cards will go at 90MB/sec min and capture 8K video

Mar 2, 2016 by John Aldred 3 Comments

The SD Association, the group responsible for developing standards for Secure Digital memory cards, have unveiled the newest version of the SD standard, SD 5.0.

This iteration has been released specifically to address video and the write speeds required to capture 8K and 360° video footage, and will introduce a new Video Speed Class labelling system.

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