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Feature

Delivers the speed and capacity you need to capture 4K Ultra HD video. Security: built-in write-protect switch prevents accidental data loss
Up to 90MB/s read & up to 60MB/s (128GB-256GB), 40MB/s (16GB-64GB) write
Highest SD card format video recording performance with both Class 10 and UHS Speed Class 3 (U3) ratings for capturing Full HD and 4K Ultra HD (3840 x2160p) video
Built for and tested in harsh conditions; temperature proof, water proof, shock proof, and x-ray proof.