A schematic diagram. Shared as “RTX 3080 3080TI 3090 A40 A6000 CG132P-RTX3090-schematic.rar” — a .rar file, 3.58 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 @bartonarquivos. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)