"SanDisk Ultra 64 GB microSDXC Class 10 UHS-1 Memory Card 30MB/s with Adapter"

This works very well. It is a class 10 memory card which ALL video cameras like. Memory that is less than a class 6 plays back on some camcorders with a jerky playback. Not with this memory chip. Worth the money and at 64GB of storage lots of video time, photos and music storage. The added value of the adapter is a plus. This is a FIVE STAR product. Art D Long Island N.Y.

"This Card Is FAST!"

Bought a Windows Surface with 8 Pro. It has a 128GB SSD which is pretty good, but adding the card gives me 64GB of storage and backup that is nearly as fast as the SSD.