Small RAR archive for the ASUS K43SA, marked 2.0 in its name, which most likely refers to a board or document revision, though the name does not say what the archive holds. At 121 KB it is too small for a full BIOS image and is more likely a compact document, boardview or tool set. Extract it with WinRAR or 7-Zip and inspect the contents before use. Compare any revision noted inside with the marking on the motherboard, since component placement and rail layout can differ between revisions of the same model.
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 @schematicslaptop. Enginerys does not host this file.
All sources (19)
The same file was posted more than once. If one link is dead, try the next.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.