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Key Features
- 128GB Storage Capacity
- Max Read Speed: 1700 MB/s
- Max Write Speed: 1200 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 128GB Extreme PRO CFexpress Card Type B from SanDisk provides read speeds of up to 1700 MB/s and write speeds of up to 1200 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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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
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 card sustain writing fast enough to ...
Will this card sustain writing fast enough to record 8k video with the Canon R5?
Yes, bought it from B&H for exactly that purpose. Works great but at 8K, not a lot of time.
Date published: 2020-08-23
Card reader for 2 formats: xqd and cafe press
Card reader for 2 formats: xqd and cafe press
I purchased the ProGrade Digital CFexpress Card Reader for this purpose. It works perfectly.
Date published: 2021-03-23
This card does it work with canon EOS 5d
This card does it work with canon EOS 5d
This card does not work in any of the Canon EOS 5D cameras.
Date published: 2023-09-13
Will this work with a Sony A7r iii
Will this work with a Sony A7r iii
No it will not
Date published: 2022-03-15
Will this card work with Canon 6d II?
Will this card work with Canon 6d II?
No it will not!
Date published: 2021-12-29
Will this card work for 600 Mb/s 4K/60 All-I ...
Will this card work for 600 Mb/s 4K/60 All-I footage from the Sony A7SIII?
No, it would not be compatible. The SanDisk 128GB Extreme PRO CFexpress Card Type B, B&H # SACFEP128GB, is a larger card that is not compatible for use with the smaller CFexpress Type A card slot found on the Sony Alpha a7S III Mirrorless Digital Camera. While we do not currently have a CFexpress Type A card from SanDisk, the two options we have that would be compatible would be the Sony 80GB CFexpress Type A TOUGH Memory Card, B&H # SOCEAG80, or the Sony 160GB CFexpress Type A TOUGH Memory Card, B&H # SOCEAG160. The maximum bitrate for the Sony Alpha a7S III is 600 Mbps, which would require a minimum sustained write speed of 75 MB/sec or faster to record 4K video. The Sony memory cards listed above have a minimum sustained write speed of 400 MB/sec, and would be more than fast enough for your usage needs. If you need a card that is currently in stock, as the Sony a7S III also supports SDXC UHS-II cards, the Lexar 128GB Professional 2000x UHS-II SDXC Memory Card with SD Card Reader, B&H # LESD2000128R, has a minimum sustained write speed of 90 MB/sec, and would also work for your needs until the CFexpress Type A cards are available for purchase.
Date published: 2021-11-30