Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 17)

Compatible Cards
The following cards can be used with the camera regardless of capacity. If the card is new
or was previously formatted (initialized) by another camera or computer, format the
card with this camera
( ).
CFexpress cards
Type-B compatible
Cards That Can Record Movies
When recording movies, use a card with ample performance (fast enough writing and
reading speeds) for the movie recording quality (
).
In this guide, “card” refers to CFexpress cards.
* A card is not included. Please purchase it separately.
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