The D500 was Nikon's first DSLR camera with an APS-C-sized image sensor, prizes above 2'000 euros. Many features are based and shared with the professional model Nikon D5.
We generally recommend SDXC memory cards (64GB and more) with an UHS-II-interface and a SD Speed Class from U3/V30 or above, if you're using a Nikon D500. Especially during burst shooting, an UHS-II enabled SD card offers a significant advantage in terms of speed. If you want to get the most out of your camera, you need to buy crazy expensive XQD 2.0 memory cards.