- Posts: 2930
- Joined: Tue Nov 12, 2013 10:32 am
- Location: St. Petersburg, Florida, United States of Amercia
Timing likely played a huge factor in the design. Anyone with experience might be shy about adopting a version 1 format that had been defined three years ago when the work was just beginning on the UMP12K. Version 2 was too late to use. That’s what you’ll see I suspect for UMP12K G2.
From Wikipedia:
The CFexpress 2.0 standard was announced on 28 February 2019. It features two new card formats ("type A", one lane, more compact and "type C", four lanes, bigger and thicker, up to 4 GB/s), with the existing cards designated as "type B". The NVM Express protocol was upgraded to 1.3.