The Lexar High-Performance 633x microSDHC/SDXC U3 cards are designed for your smartphones, tablets, or action cameras, and 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 U3 technology to deliver high-speed performance. Includes SD adapter for easy file transfer.Whether you are shooting the action with your action camera or an aerial camera, you can quickly capture, playback, and transfer a large amount of the highest quality 1080p full-HD, 3D, and 4K video making it easy to store your greatest moments and then relive the actionAlso great for use with your tablet or smartphone, the cards make it easy to quickly download or save all your favorite media files, including the highest-quality movies, photos, and songs.The cards are speed rated at Class 10, and leverage U3 technology to deliver a transfer speed up to 95MB/s (633x). These high-capacity cards give you the speed and space you need to capture, transfer, and share more adventures on the go.For added functionality, the cards also include an SD adapter, making it easy to transfer files between your devices.Features- Premium memory solution for smartphones, tablets, or action cameras- Quickly captures, plays back, and transfers media files, including 1080p full-HD, 3D, and 4K video- Leverages U3 technology for a transfer speed up to 95MB/s (633x)- Includes high-speed, Class 10 card and SD adapter- Limited lifetime warranty for card and one-year limited warranty for adapterSpecificationsSpeed Class: Class 10, U3, V30, A1 Performance: 256GB