ASUS firmware archive for the X570ZD laptop model, with 304 in the name most likely indicating BIOS version 304, compressed into a 4.48 MB rar. Images of this kind are used to restore a notebook whose SPI flash content is damaged or to roll back a problematic update. Open the archive to determine whether it holds a programmer-ready dump or an official capsule file. Back up the existing chip before writing, confirm the motherboard revision on the PCB, and check that the image size corresponds to the installed flash chip.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →