Cover that fits the mart-i iSmart 65W GaN 4 Port Desktop USB Charger (smart-i IM-PC004). Can be glued or screwed: The holes on one wall can be used to drill a hole for and tighten screws.
Print with the AC-plug hole on the bottom to avoid overhangs. Any material can be used but PETG or better would be good to avoid deformation in case the charger heats up under load.
The author hasn't provided the model origin yet.