256GB Micro SD Card Memory Card Class 10 U3 4K for SAMSUNG GALAXY Mobile Phone
100/85MB/s Read/Write, UHS-I Speed Class, U3, V30 (256GB-512GB). 24 mm x 32 mm x 2.1 mm (with SD adapter). Storage temperature -40 °C~85 °C. Class 10 UHS-I speeds up to 100MB/s2. with Android A1 Performance Class.