How Does Storage Expansion Work?

When you insert an SD card, the storage gets automatically merged with the main SSD, and al files on the card appear on you main home folder.

Theres also a utility to use to transfer the contents when you change cards.

So far so good.

What happens to disc access speeds though, if your card is slower than the intenal SSD? Does eveything drop to the slowest speed?

Im guessing that if you use it for a while important system files can end up written to the SD card rather than the internal OS, if you pop the card out for any reason you risk borking the machine completely... is that right?

Finally is there a way to have the storage expansion slot to work as a regualr card reader, mounting as a separate drive, like the multicard reader does?

Thanks in advance..

 

In thunar in the "View" menu, Turn the "View mode" to "Advanced Mode" You'll have a separate card reader

 

Thanks!

 

Judging by the output from 'mount' in terminal, and by what is put on the expansion card by the system, it is mounted as an expansion to /home only. So it shouldn't put any system-critical files on the SD card.