SANDISK - Extreme SDXC UHS-I U3 Video Class 30, 256GB up to 180MB/s
UHS Speed Class 3 (U3) and Video Speed Class 30 (V30). With high shot speed and UHS Speed Class 3 recording, you can capture the action as it happens in stunning 4K quality. High shot speed designed to capture uninterrupted 4K Ultra HD video.