256GB Class 10, A1, V30, UHS-I (U3), SDXC, 633x: Read speed up to 100 MB/s, write speed up to 45 MB/s. 128GB Class 10, A1, V30, UHS-I (U3), SDXC, 633x: Read speed up to 100 MB/s, write speed up to 45 MB/s.
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