I'd like to know that too.
The official instructions say " Important: Use only compatible memory cards
approved for use with this device. Incompatible cards
may damage both the memory card and the tablet
and may corrupt data stored on the card." BUT it doesn't say what is an approved compatible memory card or list what sort of card is incompatible
Please Linx can you make info clearer on your next update of instructions regarding Compatible and largest size of SD card that your tablet(s) accept.