Micro SD Lexar 128GB High Performance SDHC UHS-I ADA BL 633X Includes Adapter Features : Record Full HD, 3D, and 4K Content Also great for use with your tablet or smartphone Speed rated at Class 10, and UHS-I deliver a transfer speed up to 100MB/s All Lexar products undergo extensive testing in the Lexar Quality Labs Specifications : Card Type : microSDXC Storage Capacity : 128 GB Bus Type : UHS-I Speed Class : 10 UHS Speed Class : U3 Video Speed Class : V30 Application Performance Class : A1 Speed (X-rating) : 633x Read Speed : Maximum 100 MB/s Write Speed : Maximum 45 MB/s Operating Temperature : 32 to 158°F / 0 to 70°C Storage Temperature : -13 to 185°F / -25 to 85°C