That and anecdotally, these high capacity SD cards seem to quickly reach the temperature of the sun during any kind of sustained large file transfer

For a brief moment in my life I worked as data manager in a movie set, and remember studying for that job and having to talk with the DP and the cameraman about memory cards, recorders and checking with them that the quality output of the camera were not bigger that the speed capacity of the memory cards. It was fun times, and sometimes I wonder how my life would be now if I never left Argentina and had accepted the next gig the movie producer called me for.

Even the 100MB/sec won’t work for long as these stupidly small MicroSDs tend to heat up A LOT and then go into throttling where the transfer rate goes down to <1MB/sec.