I asked Clifton Stommel about this possibility.
Hi,
I just wanted to know if this system could work with a 5Dmark3 (using MagicLantern), i mean interfacing with normal CF cards, not only with CFast 2.0 cards.
Regards,
Answer:
We are looking into that, as well as XQD and SD. I think it's safe to say that the response this campaign is getting has proven that there is an interest in being able to record straight to SSD on any camera. Once the campaign closes, we'll be allocating resources to various avenues depending on which has the most room for growth and the most public interest (and obviously, getting the CFast boxes out the door and to their backers is #1 priority).