The Lexar High-Performance 633x microSDHC/SDXC UHS-I cards are designed for smartphones, tablets, or action cameras, enabling fast recording, playback, and transfer of a large number of multimedia files, including 1080p Full HD, 3D, and 4K videos. These Class 10 cards utilize UHS-I technology to deliver high-speed performance. An SD adapter is included for easy file transfer. Make the most of your outdoor adventures by harnessing the power and performance of these cards. Whether you're capturing, playing back, and transferring action with your action camera or a drone, you can quickly record a large amount of high-quality 1080p Full HD, 3D, and 4K videos, making it easy to save your best moments and relive the action. The cards are also excellent for use with your tablet or smartphone, facilitating the quick downloading or storing of all your favorite media files, including high-quality movies, photos, and songs. UHS-I technology provides a transfer speed of up to 100 MB/s (633x). These high-capacity cards offer 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. All Lexar product designs undergo extensive testing in the Lexar Quality Labs, facilities equipped with over 1,100 digital devices, to ensure performance, quality, compatibility, and reliability.