It can be easily attached with a stapler or wood screws.
It just fits a USB charger.
It has a gap for heat dissipation.
See my blog for more information. (it's Japanese)
Added the holder for Anker PowerPort I PD USB Power Adapter.
Added the holder for Anker 40W 5-Port Turbo USB Power Adapter.
You can print all parts without using support.
Filament:
Prusament PETG
Layer height:
0.2mm
Infill:
15%
The author hasn't provided the model origin yet.