USB3 memory sticks can do around 440 MB/s while microSD cards can do around 285 MB/s.
A memory stick will have slightly better cooling since it sticks out vs being inside near the already hot internals, and will cost much less for the same capacity.

So yeah if you don’t want 5mm sticking out the side, go for microSD, in all other ways a USB stick is better :slight_smile: