Next Generation Memory Card
Sony announced the development of a new memory card, the CFexpress Type B memory card (CEB-G128). This is a new ultra-fast next-generation memory card that is ideal for professional and industrial use. It features a performance of up to 1700MB/s.
CFexpress Type B
The new memory card line-up, the CFexpress Type B, is designed based on a new specification which adopts the latest interface, PCIe Gen3, standardised by the CompactFlash Association.
The Sony CFexpress Type B memory card offers a 128GB capacity, with higher capacity models of 256 GB and 512 GB planned for the future.
The new cards are roughly 3 times faster than Sony’s fastest CFast memory card. They clock in at speeds of 1700MB/s when reading and 1480MB/s when writing. That’s fast and really impressive when you consider that this is a memory card, not an SSD.
New Card Reader
You’ll also need a new card reader to support this and Sony naturally has that part covered too. The new CFexpress Card Reader,
Availability
The Sony CFexpress Type B memory card and the CFexpress MRW-G1 Card Reader are expected to be available in summer 2019.
From images on the web, the MRW-G1 is a USB reader. Taking full advantage of this speed will only be possible if it supports USB 3.2 gen 2×2 (or whatever that’s called). I somewhat doubt it, but who knows, maybe they’re talking Thunderbolt 3 support.