SanDisk Extreme microSDXC, SQXAV 512GB, V30, U3, C10, A2, UHS-I, 190MB/s R, 130MB/s W, 4x6, Lifetime LimitedSpecifications Capacity 512GB Form Factor microSDXC Sequential Read Performance Up to 190MB s Sequential Write Performance Up to 130MB s Warranty Lifetime Limited Warranty Dimensions (L x W x H) 0. 04" x 0. 59" x 0. 43" Weight 0. 26gms Model Number Operating Temperature 25C to 85C Non Operating Temperature 40C to 85C Certifications CE, FCC, C Tick RCM, UKCA, EAC, ICES Product Features Tested and certified to work seamlessly with Chromebooks Up to