Are you tired of having all your cables disorganized? I bring you the solution ! 
I have designed these organizers that provide a series of advantages:
1: The design is made to be a piece that requires little material in addition to being very resistant.
2: Easy to print, it does not need any technical material, PLA is enough.
3: Piece made to not require supports and to be printed in a short time, as advice I suggest you to print many pieces at once, in this way the time will be reduced considerably.
4: Can be installed with a M3 screw (the length depends on your desk, in my case I used 30mm) or glue.
5: The piece is designed to fit a USB head so you can add new cables without having to uninstall it !