Sdxcapplication : high speed read and write,notebook,camera,digital devices,file storage,othersapplication performance class : nonevideo speed class : v30uhs level : u3class level : c10package : yestype : sd cardbrand name : sandiskorigin : mainland chinacertification : ce,fccitem type : sandiskdimension : 0.94in x.1.25in x.08in (24 mm x 32 mm x 2.1 mm)video speed : c10, u3, v30capacity : 32gb/ 64gb/ 128gb/ 256gb/ 512gbsdxat-32gb : read 100mb/s, write 60mb/ssdxv2-64gb : read 170mb/s, write 80mb/ssdxva-128gb : read 180mb/s, write 90mb/ssdxvv-256gb : read 180mb/s, write 130mb/sxxo-32gb performance : read 100mb/s, write 90mb/sxxu-64g-xxd-128gb performance : read 200mb/s, write 90mb/sxxd-256gb-512gb performance : read 200mb/s, write 140mb/swarranty