GoPro HERO4 Silver Mode D'emploi page 14

/ Getting Started
INSERTING + REMOVING MICROSD CARDS
The HERO4 Silver camera is compatible with 4GB, 8GB, 16GB, 32GB and
64GB capacity microSD, microSDHC and microSDXC memory cards
(sold separately). You must use a microSD card with a Class 10 or a UHS-1
rating. GoPro recommends using brand name memory cards for
maximum reliability in high-vibration activities.
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To Insert the microSD Card:
Slide the memory card into the
card slot with the label facing
the front of the camera.
When fully inserted, the card
clicks into place.