Doubt You Need a Fast Card? So Did I.
Crutchfield Customer Review (What's this?)
I had my doubts that a I really needed a card this fast, but once I started using it with my Nikon 850, I became a believer. If you're moving up the technology tree in photography, it's time to go XQD. If your memory card can't keep up with your camera, what's the point of buying superior hardware?
Pros: Fast enough to keep up with your new fast camera. Incredible capacity. Backed by Sony warranty.