BIOS file named for the X453MA, an ASUS notebook model, delivered in a 2.53 MB RAR archive; the AS suffix is not explained and may simply mark the source.

BIOS archive for the X453MA laptop board at revision 2.0, a 3.15 MB RAR file. The model code matches the ASUS X453MA, though the name gives no BIOS version or tested…

ASUS BIOS ROM covering the X553MA and X453MA laptops, with the name pointing to board revision 2.0 and version 210.

BIOS dump for the ASUS X453MA, marked for mainboard revision 2.0, packed in a 3.15 MB RAR archive.

Working BIOS for the ASUS X453MA notebook, board revision 2.0, contained in a 9.59 MB RAR archive and labelled as fully functional.

ZIP archive of about 3.58 MB containing BIOS firmware for the ASUS X453MA laptop, a Bay Trail-era model in the X453 line.

Compressed BIOS image for the ASUS X453MA notebook, stated for main board revision 2.0, totalling 3.12 MB in RAR form.