Extend the memory of your mobile devices and enjoy all of your multimedia files: gaming, applications, photos, Full HD videos, without running out of space with up to 64GB storage capacity. UHS Speed Class 1 (U1), Video Speed Class 10 (V10) The memory card is optimized for Full HD (1080P) video recording and playback. A1 APP Performances Optimized for android apps (6.0 OS and higher), delivering faster app launch and performances. Up to 25MB/s Write Speed Shoot lots of high resolution photos with your Android smartphone or tablet. Up to 85MB/s Read Speed For fast access to all of your multimedia files and fast transfer from the memory card onto other microSD compatible devices, or SD devices thanks to the provided SD adapter.