Meets the UHS-I U3 and the Video Speed Class 30 (V30) standards for 4K Ultra HD video recording Specifically designed for high-speed capture of high-quality images and extended lengths of Full-HD and 4K Ultra HD video with high-speed continuous shooting Meets the new A1 standards for app performance, delivering minimum random read of 1,500 IOPS and random write of 500 IOPS, as well as sustained sequential speeds of at least 30 MB/s Read and write speeds up to 100 and 80 MB/s respectively *Speed may vary due to host and device configuration Up to 1TB storage capacity so you can get more out of your mobile devices Fit for apps, photos, videos, music, and games to meet all the needs of digital life on your smartphone, tablet, digital camera, video recorder, and more Waterproof, dustproof, temperature-proof, and X-ray-proof for use in extreme environments Equipped with an automatic error correction code (ECC) function