SanDisk High Endurance. Capacity: 256 GB, Flash card type: MicroSDXC, Flash memory class: Class 10, Internal memory type: UHS-I, Read speed: 100 MB/s, Write speed: 40 MB/s, UHS Speed Class: Class 3 (U3), Video Speed Class: V30. Protection features: Shock resistant, Temperature proof, Waterproof, Product colour: White