Great for 4K video recording. 32GB SDSDXXO-032G-GN4IN Read Speed Up to 100MB/s Write Speed Up to 90MB/s. 64GB SDSDXXU-064G-GN4IN Read Speed Up to 200MB/s Write Speed Up to 90MB/s. 128GB SDSDXXD-128G-GN4IN Read Speed Up to 200MB/s Write Speed Up to 90MB/s.
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