Capture more of your favorite content
Designed for your smartphones, tablets, or action cameras, Lexar® High-Performance 633x microSDHC™/SDXC™ UHS-I cards let you quickly capture, playback, and transfer a large number of multimedia files, including 1080p Full-HD, 3D, and 4K UHD video1. These Class 10 cards leverage UHS-I technology to deliver high-speed performance. Includes SD adapter for easy file transfer.
Capture adventures in HD
Calling all adventure seekers and adrenaline junkies! Make the most of your adventures in the great outdoors by leveraging the power and performance of these cards. So, whether you’re 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 UHD video1—making it easy to store your greatest moments and then relive the action.
Get more from your device
The cards are speed rated at Class 10, and leverage UHS-I technology to deliver a transfer speed up to 100MB/s 2. These high-capacity cards give you the speed and space you need to capture, transfer, and share more adventures on the go.
Easily transfer files with included adapter
For added functionality, the cards also include an SD adapter, making it easy to transfer files between your devices.
Rigorously Tested
All Lexar products undergo extensive testing in the Lexar Quality Labs, facilities with thousands of different cameras and digital devices to ensure performance, quality, compatibility, and reliability.

Source of above information.