Reliable and fast memory card for recording HD videos. Read: 150 MB/s, Write: 104 MB/s. Speed Class: Class 10, UHS-I. For capturing high-resolution photos as well as filming and editing Full HD videos. Waterproof, shockproof, X-ray proof, temperature resistant. Capture better photos and Full HD videos with your compact to mid-size cameras and camcorders. With SanDisk Ultra SD cards, you benefit from faster downloads, high capacity, and improved performance when recording and storing up to 512 GB of high-quality photos and Full HD videos. Enjoy ultra-fast read speeds of up to 150 MB/s (256 GB-512 GB) to save time transferring photos and videos from the card to your computer – up to 875 photos in one minute. SanDisk Ultra UHS-I SD cards are waterproof, temperature resistant, X-ray proof, and shockproof, and are compatible with SDHC and SDXC digital devices. Speed Class 10. The Speed Class indicates the minimum continuous data transfer rate when writing video files to a memory card. The Speed Class number indicates the transfer rate in megabytes per second. Class 2 cards are designed for a minimum continuous transfer rate of 2 MB/s, and Class 10 for a minimum continuous transfer rate of 10 MB/s. The Speed Class is divided into classes 2, 4, 6, and 10. For Full HD video (1080p), at least Class 6 is recommended. UHS-I bus system. UHS-I compatible SD cards allow theoretical data transfer speeds of up to 104 MB/s. The speed class is indicated as U1 or U3: U1 for Full HD videos and U3 for 4K videos. Memory cards with UHS-I support are backward compatible and can be used in devices without UHS support (with limited performance).