In addition to the new MC-N10 remote grip for Z camera, the new Z9 firmware and the Z6II/Z7II firmware updates Nikon also announced a new MC-CF660G high-performance CFexpress Type B memory card (previously rumored here):
The MC-CF660G is a CFexpress (Type B)5 memory card with a large capacity of 660 GB. It realizes a maximum read speed of approximately 1700 MB/s and maximum write speed of approximately 1500 MB/s. It is particularly suited for video/still shooting with the Nikon Z 9 full-frame/FX-format mirrorless camera.
The new Nikon MC-CF660G High Performance CFexpress Card will be available starting in June for a suggested retail price of $729.95.
