256GB: microSDXC, Class 10 and UHS-I, 3D NAND, 92MB/s read speed, 50MB/s write speed, V30. 64GB: microSDXC, Class 10 and UHS-I, TLC, 92MB/s read speed, 30MB/s write speed, V30. 128GB: microSDXC, Class 10 and UHS-I, 3D NAND, 92MB/s read speed, 40MB/s write speed, V30.
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