A boardview (component placement) file for Dell hardware (board LA-H281P). Shared as “Dell Precision 7740 - LA-H281P Boardview (BDV) (.CAD).cad” — a .cad file, 3.42 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 @ShareMan_Electronic_Files. 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.