A schematic diagram (board DA0FF4MB6E1). Shared as “DA0FF4MB6E1 FF4_USB BD-R1C_FINAL PDF.pdf” — a .pdf file, 42.7 KB.
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 .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.