The SanDisk UHS-1 microSDXC 256GB Extreme U3 A2 is a microSD card for both still and video files, including 4K. Also available: a higher-capacity 400GB microSD card. Key features include:
UHS Speed Class 3, Video Class V30 rating
Up to 170MB/s read speed; 90MB/s write speed
microSD adapter included
Not a standard SD card!