I bought a CF Express card for use with the Nikon D850 after a firmware update that enabled it. I used it here as a replacement for the XQD card. No problems with image transfer; actually pretty fast for transferring large images (until video is used for me). My travels usually take me to national parks and forests where I walk around with this SLR. I'll let you know if there's a problem with the hundreds of pictures I usually take throughout the day.
Smartphone ZTE Blade V10 Vita 2/32 GB, Dual nano SIM, graphite black
50 Review
Kingston microSDXC 64GB Class 10, V10, A1, UHS-I U1, R 100MB/s Memory Card, SD Adapter, 1 pc, Black
45 Review
π½ 512GB Samsung Evo Plus Micro SDXC Memory Card
40 Review
32GB High-Speed Micro SDHC Card - Class 10 UHS-I Compatible Memory Card for SD Devices
63 Review