You can print this on any basic printer, I personally did 15% infill and it worked fine.
This is a design I made because I couldn't find any power strip brackets for the wide large style brackets. I made this specifically for the power strip/surge protector that I have which is the “Tripp-Lite” but this should work for a lot of other sizes. I will also be releasing some other models and sizes, specifically one for 2 smaller brackets side by side. If you end up having issues or would like a design feel free to reach out. I intend to release plenty of other designs.