Samsung 256GB Storage Capacity, UHS-I / V30 / U3 / A2 / Class 10, Max Read Speed: 180 MB/s, Max Write Speed: 130 MB/s, Min Write Speed: 30 MB/s, X-Ray, Magnet, Drop, and Waterproof, Withstands Extreme Temperatures, Withstands 10,000 Insertion Cycles,...