Small 560 KB archive for the Zotac IONITX-B-E motherboard, a mini-ITX board model. The name does not state what the RAR contains, a revision or a version, so expect a firmware image but verify the contents after extraction. For desktop boards like this, a dump is used to rewrite a corrupted BIOS chip with an SPI programmer or a suitable flashing tool. Read and save the existing chip first, and confirm that the image size equals the chip capacity before writing anything to 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 @hrtechno. 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.