Samsung MB-MD512SA/EU. Capacity 512 GB, Flash card type MicroSDXC, Flash memory class Class 10, Internal memory type UHS-I, Read speed 180 MB/s, Write speed 130 MB/s, UHS Speed Class Class 3 (U3), Video Speed Class V30. Protection features Heat resistant, Shock resistant, Magnet proof, Water resistant, X-ray proof, Product colour Navy