Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 46)

Inserting/Removing Cards
Insertion
Formatting the Card
Removal
This camera accepts two cards. Recording is possible as long as there is at least one
card in the camera.
With two cards inserted, you can select one card to record to, or you can record the same
image to both cards at once (
).
Caution
Make sure the SD card's write-protect switch (1) is set upward to enable
writing and erasing.
Insertion
1.
Slide the cover to open it.
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