The 64GB SanDisk Micro SD Card SDXC UHS-1 with Adapter is optimized for apps, delivering faster app launch and performance which provides a better experience when using your Smartphone. Ideal for Android based Smartphones and Tablets. Transfer speeds of up to 100MB/s depending on your device. Rated A1 for faster mobile app performance and UHS Speed Class U1 and Speed Class 10 for full HD video recording and playback. SanDisk Micro SD Cards are Shockproof, Temperature -proof, Waterproof, and X-Ray -proof. SanDisk is the world's most trusted name for Memory Cards. SD Adapter is included for transfer of your files to other devices such as your PC