Sony alpha 7 R IV Instruction Manual page 165

Help Guide
Interchangeable Lens Digital Camera
ILCE-7RM4
α7RIV
Inserting/removing a memory card
Explains how to insert a memory card (sold separately) to the product.
Open the memory card cover.
1
Insert the SD card into the slot 1.
2
When using two memory cards, insert the second one into the slot 2.
Insert the memory card with the terminal side facing toward you, until it clicks into place.
Memory card types that can be inserted into the memory card slots
Both the slot 1 (upper) and the slot 2 (lower) only support SD memory cards (compatible with UHS-II).
This camera does not support Memory Stick media.
Close the cover.
3
Hint
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