Installing a MicroSD card
Your Tab S7's memory card capacity may vary from other models and some memory cards may not be compatible with your device depending on the memory card manufacturer and type.
The Galaxy Tab S7 supports the FAT and the exFAT file systems for memory cards. When inserting a Micro SD card formatted in a different file system, the device will ask to reformat the card or will not recognise the card. To use the memory card, you must format it. If your device cannot format or recognise the memory card, contact the memory card manufacturer or a Samsung Service Centre.
For step-by-step instructions on removing or formatting an your SD Card, check out our guide Formatting and Removing MicroSD card from Samsung Phone.