BIOS binary, 2 MB in size, for Quanta board DABY7DMB8C0, with C805D also in the name, likely a model or project reference. The DA-prefixed number follows Quanta's numbering scheme, and the brand is not stated. A raw image of this kind is written straight to a 16 Mbit SPI chip with a programmer. Read and keep the original contents before flashing, confirm the board number on the PCB, and make sure the chip capacity matches the 2 MB file.
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 @bioshub. 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 →