Ultra High-Speed microSDXC card rates UHS-1 V30 A2 speed class: supporting high-resolution photo shooting and 4K UHD: Full HD video recording. AI Rated micro SD card for faster app loading and better mobile device experience. It is also your go-to micro SD card to save precious pictures and videos: backup and transports important documents: and expand your mobile device capabilities. Just load and play: capture and save.