A second copy of a 620A BIOS dump, stored as a 2.00 MB binary; the (2) in the name only marks a duplicate and says nothing about a different version. The name does not give a brand, board number or revision, so matching it to hardware is up to the technician. A 2 MB image fits a 16 Mbit flash chip only. Compare it byte for byte with the other 620A file to see whether they differ, keep a backup of the original chip, and verify after programming.
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 @biosfilebins. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →