Comments on: Lexar Professional CFexpress Type-B Card Review (256GB) – Much Anticipated Media Storage Speed

By: Les Tokar

Les Tokar — Sun, 17 May 2020 23:31:36 +0000

In reply to cpX. I questioned the internals of this drive and it is not discloseable...sorry.

By: Les Tokar

Les Tokar — Sun, 17 May 2020 23:30:42 +0000

In reply to Joerg.

Thank you for the compliment. There are R\readers on their way and, in fact, Lexar has one which can be seen below. The concern with Type B Card Readers is that they are two lane vice four and can only read to a max of 1GB/s. This is why we had to have an adapter made specifically to hit full speeds.

https://www.lexar.com/portfolio_page/professional-cfexpress-type-b-card/

By: Joerg

Joerg — Sun, 17 May 2020 17:38:21 +0000

Thanks for this benchmark, seems to become the next standard in photography. Are any additional information available about the adapter(s)? This would be a nice one for dev purposes.

By: cpX

cpX — Thu, 07 May 2020 04:47:40 +0000

At the totally excessive prices for CFexpress, this should be at least 3D XPoint SLC memory. Connected to four PCIe V4.0 lanes (64GBit/s). According to the 4K values, this is TLC memory at best. The Sustained Sequential Write Performance at 128KB would interest me very much.