Samsung 512GB EVO PLUS MicroSD 100MB/s, 90M/s, 4-Proof Protection, UHS-I/HS/Grade 3/Class 104 proof protection Read & write speeds up to 100 MB s & 90 MB s UHS I, compatible to HS interface, Grade 3, Class 10 Simply the right card More space and higher speed. Free up your devices with the largest capacity and highest read write speeds in its class, perfect for 4K UHD video.* With astonishing performance and reliability, EVO Plus lets you save and treasure the richness of life. * 4K UHD video support for 512GB, 256GB, 128GB and 64GB cards.