Silicon Power Superior 64 GB MicroSDXC UHS-I Class 10All Of Your Precious Moments In 4K Ultra HD If you don't want to miss a single moment, you need a card that can keep up with the pace of life. With UHS Speed Class 1 (U3) and Video Speed Class 30 (V30), the Superior microSDXC UHS I card allows you to capture uninterrupted 4K Ultra HD videos. On top of that, read and write speeds up to 100 and 80 MB s, respectively, ensure that youre catching every single one of those precious moments in stunning