Is it possible to replace the SD card for PBX Panasonic KX-TDA200 with a normal one?

Question

ATS

Quite recently I had to get acquainted with the PBX Panasonic KX-TDA200 on duty, and since this is only the beginning of my journey in the knowledge of the PBX, naturally, the first thing I thought about was how to make a backup copy of what was before me, and then at least not tear I have my hair on if I break something. Ok, I figured out that the SD card is 32 MB inside. contains files readable by a regular card reader, this is the firmware, it also contains a configuration file. But! Now I'm a little confused about the topic of throwing a PBX of another card (I found it to buy a 512 MB SD card, although that's not the point), it seems like they write on these our Internets that this is not just an SD card, but it has its own name a spare part (it seems to be in my case KX-TDA0820). Tell me, this is what happens, the PBX does not just read files, but is it somehow attached to it in hardware? And what happens if the PBX seems to be about 10 years old, the SD card may become unusable, can I predict its death? The essence of this whole topic in general is to give me a specific answer, is it worth bothering with it at all, or will I just keep all the files from this SD card in backup form and live in peace further?