Rated UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) , this fast, high-performing card teams up with your action camera to let you capture and share unforgettable extreme sports video.With read/write speeds up to 100MB/s / 90MB/s [128GB only) and 90MB/s / 60MB/s [32GB - 64GB], SanDisk Extreme  microSD UHS-I cards deliver the fast recording and playback you need to capture Full HD (1920x1080p) and 4K UHD (3840x2160p) video  of your most daring adventures in stunning detail, ready to enjoy on today's new 4K TVs and monitors.As soon as you catch your breath, share the thrill using the included SD adapter to move your video to your Android -based tablet or your computer. SanDisk's proven ability to stand up to environmental extremes  gives you confidence that your video will be there to share when the adventure's done.