I would use the software Nikon provides for transferring files.
gailj wrote:
Hi, i just bought a D500 & ordered a Sandisk extreme PRO Cfexpress card. I don`t have reader that works so used the cord that came with the camera to transfer pictures but nothing happens :( i have an older imac which i still run Mojave on, not sure if that`s the reason & just need to order a reader for this card. Any thoughts would be appreciated :)