Designed for your smartphones, tablets, or action cameras, Lexar High-Performance 633x microSDHC/SDXCÂ UHS-I cards let you quickly capture, playback, and transfer a large number of multimedia files, including 1080p Full-HD, 3D, and 4K video. These Class 10 cards leverage UHS-I technology to deliver high-speed performance. Includes SD adapter for easy file transfer.