This cable outlet can be installed in a panel (e.g. desktop). After passing through cables with plugs, the opening can be closed with a cover plate. Depending on the number of cables to be passed through, there are different covers (3 - 14 cutouts).
The best way to fix the outlet (outer ring) is with silicone or another adhesive.
Initially, I designed this cable outlet for my Tukkari TLX printer enclosure. This is located on a cabinet in which there is a RaspberryPi (printer host), so cables for the power supply, USB and camera must be led down.
2x countersunk screw M4x12
2x nut M4