CF Express 4.0 memory cards

[ronbyram]

Hello Gang,
I am a R6 Mark II owner but I am thinking about moving up to either the Mark III and or R5 or a used R1 for my sport photography.
Does anyone recomend a brand and or size.

Does anyone know if the 4.0 format is supported? I know Memory is high $ but wanted to ask.

I currently use Prograde 256 cards on my Mark II

 

[neuroanatomist]

Depends on what you mean by supported. CFe v4 work fine, but Canon bodies only support v2 speeds. I have a set of Prograde v4 cards (3 x 256 GB, 2 x 1 TB) that I use with my R1. The faster speed means copying files to my Mac is fast, but slower cards would not be a bottleneck for the camera.