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Key Features
- 64GB Storage Capacity per Card
- Max Read Speed: 1500 MB/s
- Max Write Speed: 800 MB/s
- Records Raw 4K Video
Designed to deliver speeds necessary for working with smooth, raw 4K video captures at resolutions up to 4096 x 2160, the 64GB Extreme PRO CFexpress Card Type B from SanDisk provides read speeds of up to 1500 MB/s and write speeds of up to 800 MB/s, which enables low latency during high-speed recording and an enhanced workflow efficiency. This card is also backward compatible with select XQD cameras that adopt firmware to enable CFexpress. In the event of accidental file deletion, SanDisk's RescuePRO Deluxe data recover software is available as a free download.
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Kit Configuration
See any errors on this page?
does it work for Sony FX9 camera?
does it work for Sony FX9 camera?
No, the SanDisk 128GB Extreme PRO CFexpress Card Type B will not support or work with a Sony FX9 camera. Please work with XQD cards like the model shown below:
Sony 120GB G Series XQD Memory Card
B&H # SOXQD120GBGF, https://bhpho.to/2Cacm4S
Date published: 2025-01-10
I bought this 128gb card together with ProGrade ...
I bought this 128gb card together with ProGrade Digital CFXB,SDXC,SDHC USB 3.1 GEN 2 READER. Check the speed using the h2testw V 1.4 software and disappointed: Write speed-323 MByte/s, Reed speed - 294 MByte/s. What is wrong?
The read and write speeds on the card are theoretical speeds that are valid only in a perfect scenario. Nobody really gets the card to work at those speeds. Now the question why one card can be slower than another, it could be the drivers in your computer are slowing down the card, it could be you are connecting the card reader to a USB hub that is slowing down the card, it could be the USB cable you are using is slow, it could be the card is defective. There are so many variables unfortunately. If ProGrade is working faster for you I would recommend returning the Sandisk and getting ProGrade cards.
Date published: 2022-02-11
Will this work with the Komodo-X?
Will this work with the Komodo-X?
While the SanDisk 512 GB Extreme PRO CFexpress Card Type B would work, it is not on the RED approved list for the Komodo-X. RED recommends this Sandisk card for their cameras:
SanDisk 640GB PRO-CINEMA CFexpress Type B Memory Card
BH #SA640PCTBC
RED approved cards:
https://bhpho.to/3XpeGNc
Date published: 2024-09-12
I just purchased a Canon R5 (NOT the Mark II) ...
I just purchased a Canon R5 (NOT the Mark II)
Will this card work with all video formats supported on the R5?
Yes, the SanDisk 512GB Extreme PRO CFexpress Card Type B will support the video formats in the Canon EOS R5 Mirrorless Camera.
Date published: 2024-10-30
This card works on Nikon D 850 ?
This card works on Nikon D 850 ?
The SanDisk 128GB Extreme PRO CFexpress Type B Memory Card is compatible with the Nikon D850 DSLR Camera (B&H # NID850).
Date published: 2025-05-27
Has the heating issue been solved for the r5 in ...
Has the heating issue been solved for the r5 in the last firmware update?
The Canon R5 has received several firmware updates that have fixed many of it's overheating issues.
Date published: 2023-11-27
What is your most popular brand of cf express ...
What is your most popular brand of cf express card?
Probably SanDisk the most popular maybe not the cheapest...but cheapest is not always the best.
Date published: 2021-11-08
Will this work well with Canon R5 MK II?
Will this work well with Canon R5 MK II?
Yes, the SanDisk 512GB Extreme PRO CFexpress Type B Memory Card would be a good memory card recommendation compatible for use with the Canon EOS R5 Mark II Mirrorless Camera.
Date published: 2026-03-31