Firmware for the ASUS H110-PLUS desktop motherboard, version 3805 according to the name, packed in an 8.03 MB ZIP. ASUS releases numbered BIOS versions that can be flashed through EZ Flash, BIOS FlashBack where supported, or written straight to the SPI chip with a programmer when the board will not post. Check whether the extracted file is a capsule update or a raw dump before programming. A capsule image usually needs its header removed for a chip write. Save the existing BIOS before overwriting it.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →