I only printed it with PLA, but should work for everything. I did use supports for best results, but your mileage might differ depending on your printer.
The author remixed this model.

I split the original “sparse” patch panel, so that it can be printed on smaller 3D printers. I had to sacrifice one keystone, but there are still plenty.
To connect them I suggest to use some glue and M3 screws and nuts. I made it for countersink screws, 10-12mm will work, but you can use longer ones if they don't interfere with your keystones.