Record epic 4K UHD, slow motion, flawless 4K video, and pristine high-res stills with video speed class ratings of U3 and V30. Enjoy longer recording sessions and free up space on your devices with up to 512GB of storage. And with read speeds up to 230MB/s and write speeds up to 160MB/s [256GB-512GB capacities], you can create more in incredible detail. Plus, easily back up, organize, and transfer your photos and videos with the SANDISK desktop app. Designed, built, and tested to go the distance, you can trust SANDISK Extreme SD UHS-I cards to help protect your shots.