Capture fast-action photos or shoot 4K UHD video2 with write speeds of up to 130MB/s. The SanDisk Extreme® microSDXC™ UHS-I Card lets you shoot more and faster. Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 256GB, the SanDisk Extreme® microSD™ UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.