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Interesting info about CFexpress 4.0: Cooling needed for data transfer and likely no camera will support it for the next 1-2 years


Back in autumn the CFexpress association announced the new 4.0 standard. As you know Current Type A cards used by Sony cameras have a read speed up to 900MB/s and a write speed up to 800MB/s. The new CFexpress 4.0 Type A cards (like the Lexar you see on top) use the new PCIe Gen 4 bus and features read speeds of up to 1800 MB/s and write speeds of up to 1650 MB/s.

The German youtuber Valuetech visited the CP+ show and share two interesting tidbits:

  • Nextorage displayed a 4.0c rad reader that necessitates of cooling because of the heat produced by the big amount of data being transferred.
  • He talked to camera manufacturer and they told him to not expect any future camera to support this standard for the foreseeable time (he guesses 1-2 years)

I guess that overheating on the new 4.0 standard might need some special cooling inside the cameras and therefore it’s first going to be used on bigger more expensive cameras that feature some kind of cooling mechanism.

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