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Title    SD Cards Hop on the PCIe 4.0 Bus to Hit 4GB/s with Version 8.0 of Storage Spec
Date    Wednesday May 20 2020, @07:40PM
Author    martyb
Topic   
from the put-your-whole-system-on-a-tiny-chip dept.
https://soylentnews.org/article.pl?sid=20/05/20/1250244

upstart writes in with an IRC submission for carny:

SD cards hop on the PCIe 4.0 bus to hit 4GB/s with version 8.0 of storage spec:

As outlined in a whitepaper [PDF] this month, the new spec will let existing SD Express and microSD Express cards employ PCIe 4.0 and NVMe to deliver a top speed data transfer speed of [3938 MB/s].

While the new spec is backwards-compatible, the latest top speed will only come with a card reader capable of connecting to the extra row of pins present on SD Express cards that support dual PCIe lanes.

[...] The good news is that SD Express and microSD Express cards can still get to 1970 MB/s on a device with a single PCIe 4.x lane under version 8 of the specification, and SD Express can get there with a pair of 3.x lanes. Which is rather faster than many SSDs and, as SD Express can climb to 128TB on a single card, a rather tasty storage option.

Also at The Verge, PetaPixel, and Yahoo! Finance.

Original Submission

Links
  1. "upstart" - https://soylentnews.org/~upstart/
  2. "SD cards hop on the PCIe 4.0 bus to hit 4GB/s with version 8.0 of storage spec" - https://www.theregister.co.uk/2020/05/20/sd_card_spec_version_8/
  3. "whitepaper" - https://www.sdcard.org/downloads/pls/latest_whitepapers/SD_Express_microSD_Express_BestChoice_WhitePaper20200515.pdf
  4. "new spec" - https://www.sdcard.org/press/thoughtleadership/200519_SD_Association_Delivers_Gigabyte_Speed_Leap_with_New_SD_Express_8_0.html
  5. "The Verge" - https://www.theverge.com/2020/5/19/21264389/new-sd-express-card-specification-four-times-faster
  6. "PetaPixel" - https://petapixel.com/2020/05/19/sd-express-8-0-spec-unveiled-can-hit-blistering-4gb-s-transfer-speeds/
  7. "Yahoo! Finance" - https://finance.yahoo.com/news/sd-express-delivers-gigabyte-speeds-120000780.html
  8. "Original Submission" - https://soylentnews.org/submit.pl?op=viewsub&subid=41120
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printed from SoylentNews, SD Cards Hop on the PCIe 4.0 Bus to Hit 4GB/s with Version 8.0 of Storage Spec on 2024-04-20 02:35:16