A:AnswerThe Nikon D500 has a dual card capability. It will take an SD card as well as an XQD card.
I would highly recommend that you use an XQD card as your primary card and utilize a high speed (class 10) card for overflow or backup.
The read/write speed of the XQD card is far superior to the SD Card and is more in line with today's professional photography requirements.
Best of luck !
Gil
aka SemperFiGuy
A:AnswerFine raw files 14bit resolution are 90+ meg
JPEG from that resolution are running about 25Meg each
So every pic is over 100Meg if storing both formats.
When Placed in the camera the pic availability is showing a little over 400 for.
A 64Gb card.