This is an under-desk mount for the powered Lenovo USB-C Travel Hub ( https://support.lenovo.com/us/de/solutions/acc500082 ) that saves space on the desk.
Note that the rear hole is omitted, as the location of the cable outlet on the case is unknown. So a 10mm drill was used to place it where it needed to be placed. The USB-C connector should fit through a 10mm hole.
To fix it under the desk, 3.5 mm screws were used (the screw holes are 3 mm in diameter). With PLA, they slid through smoothly.
The product was designed by
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