In my club we have a wall mounted USB charger, yet all the cables keep disappearing after a few weeks.
This model is intended to make it hard to take the cables away.
The bottom part is designed to fit 4 M3 inserts and two screws to attach it to a wall or a tabletop, the slots for the cables are designed to fit cables up to 7 mm. All cables I had on hand when designing this had connectors bigger than this, needing to unscrew the top part to swap or take out cables.
The author marked this model as their own original creation.