Nikon D850 User Manual page 385

❚❚ SD Memory Cards
The camera supports SD, SDHC, and SDXC memory
cards, including SDHC and SDXC cards compliant
with UHS-I and UHS-II. Cards rated UHS Speed Class
3 or better are recommended for movie recording; using slower
cards may result in recording being interrupted. When choosing
cards for use in card readers, be sure they are compatible with
the device. Contact the manufacturer for information on
features, operation, and limitations on use.
361