Amazon.com: JYJZPB EN-EL15 EN-EL15B EN-EL15C Battery Charger with ...
JYJZPB EN-EL15 EN-EL15B EN-EL15C Battery Charger with 2 SD Card Slots and USB Output Fit for Nikon D7500, ZF, Z8, Z7, Z6, D500, D600, D850, D7000, D7100 Camera Batteries (Battery Charger Only).
Z6II card slot assignment: Nikon Z Mirrorless Talk Forum: Digital ...
The most notable upgrade over the Nikon Z6 is the inclusion of a second memory card slot. The Z6II features an slot and a / slot.
Z 6 & Z 7 Supported Memory Cards
PhotographyDigital CamerasMirrorless CamerasNikon Z6Memory Cards for Z6 Mirrorless Camera with 24-70mm Lens.