Review on 💾 Transcend 16GB SDHC Class 10 Flash Memory Card - High Speed Performance and Reliable Data Storage by Micha Dobrzyski ᠌

There is some speed-related information here. (Mine is a 32 GB card, and I've seen that smaller cards of the same kind tend to be slower, so that's why I went with the higher capacity.) Reading at 222022 MB/s and writing at 21.04 MB/s over USB 3.0 are the results when paired with a Transcend RDF8 reader. When connected to a USB 2.0 port, data can be read at 19.82 MB/s and written at 19.41 MB/s. There were 1MB files that CrystalDiskMark displayed. A 1.45 GB movie, a "real" recording, only records at a slower rate of 17.2 MB / s on USB 2.0 (1 minute and 26 seconds). And yes, I nearly entirely agree with the evaluation from November 2, 2022: performance can drop dramatically from using a low-quality connection or from connecting the card reader to the front USB ports.