Designed for your smartphones, tablets, or action cameras, Lexar High-Performance 633x microSDHC/SDXC UHS-I cards let you quickly record, play, and transfer a wide range of multimedia files, including 1080p Full HD, 3D, and 4K video. These Class 10 cards use UHS-I technology to deliver high-speed performance. Includes SD adapter for easy file transfer. Call to all adventurers and adrenaline junkies. Make the most of your outdoor adventures by harnessing the power and performance of these cards. Whether you record, play back and transfer the action with your action camera or aerial camera, you can quickly record, play back and transfer a large amount of the highest quality 1080p Full HD, 3D and 4K video - so it's easy to save your best moments and then relive the action. The cards are also great for use with your tablet or smartphone and make it easy to quickly download or store all your favorite media files, including the highest quality movies, photos and songs. UHS-I technology for a transmission speed of up to 100 MB/s (633x). These high capacity maps give you the speed and space you need to record, transfer and share more adventures along the way. For additional functionality, the cards also include an SD adapter that makes it easy to transfer files between your devices. All Lexar product designs undergo extensive testing in Lexar Quality Labs, facilities with more than 1,100 digital devices, to ensure performance, quality, compatibility, and reliability.