Welcome to Android. Yes you can use the micro SD card. You won't need the adapter for the tablet but may need it for your laptop or desktop. My advise is to install the micro SD card into the tablet and format it there before using it. You can install it then go to settings > general and down to storage. Tap on storage and it will show the internal storage and will show the SD card. You should have an option to format the card. Tap on that to format. Only do this if there is no data on the SD card that you want to keep. Formatting will wipe it clean.
Posted via Android Central App