Designed for your tablet, sports camcorder, or smartphone, Lexar high-performance 300X microSD/microSD UHS-I cards make it easy to quickly capture, play back, and transfer 1080P full-had, 3D, and 4k video, as well as the highest-quality movies, photos, and songs. The cards leverage UHS-I technology to deliver high-speed, class 10 performance up to 300X (45MB/s). these premium memory solutions give you the speed and space you need to enjoy more of your favorite multimedia on the go.