Cameras · Nikon exFAT CFexpress Type B card
Recover supported Nikon media from CFexpress Type B
How do I recover files from a Nikon CFexpress Type B card?
Short answer
First connect it through a stable CFexpress Type B reader and confirm it mounts as exFAT. A readable exFAT volume can be scanned read-only; select only supported types such as NEF, JPEG, MP4 or MOV. Formats outside that list are not covered, and a card that keeps dropping out needs a recovery lab, not software.
The situation
Supported NEF, JPEG, MP4, or MOV assets are missing from readable media.
Two conditions decide this case, and the card slot is neither of them: the volume has to mount as exFAT and stay mounted, and the lost files have to be of a type the scan covers. In a sound reader, a Type B card behaves like any other exFAT medium.
01 / Diagnose
Work out what actually disappeared
CFexpress Type B runs over a PCIe connection, so the reader and its driver matter more than they do with SD media. A reader that overheats or loses the link produces read errors that look like card damage without being it. Once the volume is stable the situation becomes ordinary: deleted or lost NEF, JPEG, MP4 and MOV files sit in free clusters until new recordings take their place.
A readable exFAT volume can be scanned, but proprietary formats outside File Recovery Hero's list are not implied.
Check the last known path, trash and backups without writing to the original device.
02 / Protect the source
Preserve the best recovery chance
- 1
Connect the card with a reader that stays cool under sustained load, using a cable and port able to carry the transfer.
- 2
Verify the mount in the disk utility: exFAT, the correct capacity, and no disconnections during a first test read.
- 3
Scan read-only and limit the file types to what the body actually recorded, meaning NEF, JPEG, MP4 or MOV.
- 4
Export to an internal drive or a second external disk, then check the results in the software you genuinely work in.
Do not keep retrying a card that disconnects again and again, and refuse the repair or format the system offers. Each failed attempt on unstable media costs time and can reduce what a specialist might still read, since software reaches no blocks the controller declines to deliver.
03 / Choose the method
Match the tool to the source
For stable, readable exFAT, NTFS and FAT16/FAT32 or uncompressed IMG, DD, RAW and BIN images.
Unconfirmed exports are marked .UNVERIFIED.
Only the listed formats are covered, so a recording format outside them will not be reconstructed however readable the card is. File Recovery Hero reads exFAT, NTFS and FAT16/FAT32 media read-only; a card with physical or controller faults belongs in a recovery lab rather than in software.
04 / Verify
Check the recovered content, not just its name
Count what came back against what the shoot should contain and open a sample of each format: RAW developing fully, JPEG decoding to the whole frame, video playing its stated length with sound. A scan that reached the end without read errors is itself a good sign for the card.
Keep the source until two verified copies exist. One working preview is not enough.
Sources and technical references
FAQ
Questions about this recovery case
Can Nikon exFAT CFexpress Type B card be recovered in this situation?+
Two conditions decide this case, and the card slot is neither of them: the volume has to mount as exFAT and stay mounted, and the lost files have to be of a type the scan covers. In a sound reader, a Type B card behaves like any other exFAT medium. The result still depends on what remains readable on the source.
What should I avoid before scanning?+
Do not keep retrying a card that disconnects again and again, and refuse the repair or format the system offers.
Does scanning write to my memory card?+
Your memory card is only read. Nothing is saved to it.
How do I know whether the result is complete?+
Count what came back against what the shoot should contain and open a sample of each format: RAW developing fully, JPEG decoding to the whole frame, video playing its stated length with sound.