The SanDisk Ultra microSDXC cards are fast for better pictures, app performance, and Full HD video. They are; compatible with your devices such as Android smartphones, tablets, and interchangeable-lens cameras. Feature premium transfer speeds of up to 95 MB/S, allowing you to transfer up to 1200 photos in just one minute. Rated A1, the SanDisk Ultra microSD card is optimized for apps, delivering faster app launch and performance which provides a better smartphone experience. Uses a durable design for use in harsh environments - they are shockproof, temperature-proof, waterproof, and X-ray-proof so you can enjoy your adventures without worrying about the durability of your memory card.