BIOS image for the ASUS VivoBook S301LA, board revision 2.2, with Q301 also listed in the name, packed as a 3.26 MB RAR. The Q301 reference suggests the board is shared with that related model. Technicians flash such dumps onto the SPI BIOS chip with a programmer to revive units that do not start after an update or corruption. Back up the original chip first, verify the rev 2.2 marking on the PCB, and confirm the extracted image size matches 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 →