SanDisk Extreme PRO SDXC Card

A UHS-II SD card rated for 300MB/s read and sustained writes fast enough for 4K and 6K video without dropped frames. The V90 rating is the specification to look for if your camera records high-bitrate footage; slower V30 cards will stop recording mid-take. Build is rated against water, temperature extremes and X-rays. Expensive per gigabyte compared with V30 cards, and worth it only if your camera can use the speed.