Had to fit HDMI & Displayport cables through 25mm/1 inch electrical conduit (building static limits it to 25mm). The issue is that the connector won’t fit through the commercial 90-degree corners.
Solution? Enlarge the profile while keeping the bending radius:
Some CAD and a 3D print later I have the solution no money can buy. That’s the power of 3D-printing and modeling.
Water won’t get there and if the entire house is flooded and the walls are wet.
Fire protection is up to code.
If you would want to specify this (commercial installation) you likely would need to explicitly allow its use as this shape is not in the ISO/DIN standard.