If you compare a MicroSD card with an advertised speed of 48 MB/S to a full size SD card  with an advertised speed of 48 MB/S (from the same manufacturer), should their performances be identical?

Or is there anything about the size reduction of a MicroSD card that makes it perform better or worse?

Similarly if you take that MicroSD card, and place it in a MicroSD-to-full-size-SD converter (from the same manufacturer), will it perform identically to the equivalent full size SD card?

As examples, one could compare the [SanDisk Ultra PLUS microSDXC card][1] with the [SanDisk Ultra PLUS SDHC card][2].  In this example, the comparison would be both with and without the MicroSD-to-full-size-SD converter.

BTW, on the packaging, the specs are identical, but I'm interested in knowing if, in the real world, there are any performance differences.


  [1]: https://www.sandisk.com/home/memory-cards/microsd-cards/ultra-plus-microsd
  [2]: https://www.sandisk.com/home/memory-cards/sd-cards/ultra-plus-sd