Archive for the Gigabyte GA-B85M-DS3H micro-ATX motherboard at revision 3.0, 606 KB in RAR format. The name does not list the content type, so it may contain a schematic, boardview or BIOS and should be inspected first. On desktop boards like this, such material helps trace CPU VRM phases, standby rails and the Super I/O power-on path, or restore the BIOS chip with a programmer after backing up the original. Gigabyte released several revisions of this model, so confirm rev 3.0 on the PCB.
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 @IT_SERVICE_WORLD. 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.