A boardview (component placement) file (board LA-L655P). Shared as “HDK50 LA-L655P.cad” — a .cad file, 3.12 MB.
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 @desktopbios. Enginerys does not host this file.
How to open a .cad file
GenCAD text export, the usual format for Compal, Quanta, Wistron and Dell / HP / Lenovo laptop boards.