Samsung micro SDXC Micro SD UHS-1 TF Memory Card PRO 64GB 64G Class 10 for Samsung GALAXY MEGA 6.3 Fastest Micro SD Card with UHS-1 Read Speed: Up to 70MB/s Write Speed: Up to 20MB/s Everything But Stromboli (tm) Memory Card Reader Eco Friendly Bulk Packaging! Adapter Not Included.