Alik Griffin benchmarked different memory cards on the Nikon Z6 II / Z7 II cameras and published this post with his findings:
CFexpress | In-camera | USB read | USB write | Price |
Angel Bird 256GB | 332.10MB/s | 955.7 | 947.3 | Amazon |
Angel Bird SX 160GB | 325.37MB/s | 943.2 | 925.6 | Amazon |
Lexar CFx 128GB | 289.88MB/s | 985.3 | 915.1 | Amazon |
Wise Pro CFx 160GB | 268.18MB/s | 991.5 | 946.3 | B&H |
UHS-II v90 | ||||
Kodak Ultra Pro | 203.04MB/s | 268.3 | 247.6 | Amazon |
Kingston Canvas React | 200.90MB/s | 283.3 | 243.2 | Amazon |
Delkin Black | 199.93MB/s | 259.9 | 225.4 | B&H |
Sandisk Extreme Pro | 182.55MB/s | 293.7 | 242.2 | Amazon |
UHS-II V60 | ||||
Sony M | 122.80MB/s | 282.4 | 129.5 | Amazon |
Sony E | 116.22MB/s | 282.3 | 103.8 | Amazon |
Angel Bird II | 117.09MB/s | 166.5 | 104.5 | Amazon |
The best-performing memory card, for now, seems to be Angel Bird 256GB MKI. Check the original article for additional information.