Insert an SD Card Into Your Galaxy Note9
You can use the Sim ejector tool that came in the box of your Galaxy Note9 to insert an expandable storage SD card into your device. The SD Card slot will be right above the Sim card. This is helpful if you want to expand the storage capability of you Note9 with a, sold separately, SD memory card. It is recommended that you use a Class 10 or higher SD Card with the Galaxy Note9.