Sony SDXC Professional 64GB Class 10 UHS-II

Read speed: 277 MB/s Write speed: 150 MB/s UHS-II U3 speed class Water, shock and X-ray proof Capture 4K video content and photos in high-speed burst mode with the Class 10, UHS-II Speed Class 3 compatible 64GB UHS-II SDXC Memory Card from Sony. In addition to capturing 4K video, this U3 compatible memory card provides enhanced data transfer rates of up to 277 MB/s read and 150 MB/s write to make transferring large files quick and easy.