SanDisk 256GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-256G-GN6MA: ( New Sealed , see photos for details) water proof, temp proof, shock proof, x-ray proof Ideal for Android Smartphones and Tablets, and MIL Cameras Capacities up to 512GB (1GB=1,000,000,000 bytes Actual user storage less) to store even more hours of Full HD video (Approximations; results and Full HD (1920x1080) video Support may vary based on host device, file attributes and other factors) Up to 100MB/s transfer read speed (Based on internal testing; Performance may be lower depending on host device, interface, usage conditions and other factors) lets you move up to 1000 photos in a minute (Based on 4.1GB transfer of photos (avg. file 3.5MB) with USB 3.0 reader; Results may vary based on host device, file attributes and other factors) Load apps faster with A1 rated Performance (A1 Performance is 1500 read IOPS, 500 write IOPS; Based on internal testing; Results may vary based on host device, app type and other factors) Class 10 for Full HD video recording and Playback (Full HD (1920x1080) video Support may vary based upon host device, file attributes, and other factors) SanDisk Memory Zone app for Easy file management (Download and Installation Required)