Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
Your NOOK Tablet has approximately 16GB of built-in memory, though B&N reserves 15GB for the operating system and other B&N purchases (for example, NOOK Books, NOOK Magazines™, and so on)—leaving 1GB of memory for your use. That’s enough memory for a lot of books. However, it might not be enough memory if you add pictures, music, videos, and audiobooks to your NOOK Tablet. Therefore, your NOOK Tablet’s memory is expandable using a microSD card.
Tip
A microSD card is not the same as an SD memory card like the kind typically used in digital cameras. A microSD card is approximately the size of your fingernail.
Note
You will see both microSD and microSDHC. Your NOOK Tablet can use either format—they are the same. The HC is used for microSD cards greater than 2GB in size.