I'm not sure what kind of specialized card reader she needs in order to operate at maximum speed, but I believe that the most of the time, electronic products will function at a speed that is slower than its advertised qualities. Some pros: The map is very similar to a map. I was interested in purchasing it because of the pricing in the claimed speed class. Some cons: CrystalDiskMark 3.0.2 provides speeds You should read: 4.426 MB/s Write: 4.238 MB/s ATTO DiskMark You should read: 4.39 MB/s Write: 4.7 MB/s The card does not live up to the standards of its category: (
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