With a V10 rating, the bare minimum write speed is 10MB/s. Maximum write speed of 30MB/s (V30) and minimum write speed of 10MB/s (U1) With U3, you may expect no less than 30MB/s when writing - Class 10, U1, and V10 are trustworthy in this map, while U3 and V30 are not. It's great for taking pictures, just like it says on the box, but it's not great for recording video, especially at a high bitrate. Even if, without any discounts, this card competes favorably with the Sansung EVO and the SanDisk Ultra, I would still rather buy a tried-and-true brand. In any event, they are not fooled by outward appearances.
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