XQD is used in Sony's...
The 5DIV not using CFast says a lot about the issues with the format IMHO.
Cheers,
Bernard
No, it says a lot about Canon's intention to cripple this product, which AFAIK can also not do clean 4K HDMI out to an external recorder, which just about any other camera on the market can now do.
You've once again forgotten that camera design is more about intentional crippling and segmentation than about actual tech issues.
Now if you want to argue that SD cards "could" do higher data rates - I will not protest. But again, a decision has been made not to speed up that interface - for now
Edmund