The latest Nikon Z6/Z7 CFExpress firmware update supports only the new Sony CFexpress Type B TOUGH memory cards (read and write speeds of up to 1700MB/s and 1480MB/s). A quick check with online retailers shows that the Sony CFexpress Type B TOUGH memory cards are expected to start shipping next week, on December 25. Pre-orders … Continue reading The new Sony CFexpress Type B TOUGH memory cards will start shipping next week