Ebay for about $18. If you are familiar with the data cards that are used in cameras you probably know that they come in a larger size with a small one in side. It is the small one that you want. Just push it in to the slot in the side of your tablet. I then connected ny tablet to my computer and it downloaded and installed a driver. At least I think that is what happened. Now when I turn on the tablet I get a message that the card is being checked for errors so I presume that it is working.Kevin S, where did you get the 16GB chip, how much was it and was it a matter of just inserting it in the micro sd card slot and it worked????
Best of luck.
Kevin