The file 'Computer Case Rear PCI Bracket Blank 3D Printer Model' is (stl) file type, size is 1.7KB.
Was in need of extra of these computer case bracket things so I copied one I had in Fusion 360. Was kind of surprised there were none already on Thingiverse.
Not sure if these are universal or not, but they fit decently in my computer case.
case_bracket.stl | 8.7KB |