Atomstack x30 Pro No Sd Card Problem

SD Card type. Not all cards are the same even if they look similar. SDXC is different from SDHC and SD. MMC is also different than SD. TF Card is also different than SD. Having said that, there’s a lot of overlap and effort to make these compatible but some readers are more picky than others.
Filesystem format. Not all readers can use exfat. And not all formats of exfat are the same. I suggest using the SD Memory Card Formatter from the SD association.
If you can check for specific compatibility from the X30 Pro that would be easier or else you can simply try various combinations of card/format.

Most Atomstack engraving machines only support FAT32 file system, and your card is currently in exFAT format, so you need to format it to FAT32 to be recognized.