The cable management feature is not available for all Tylko furniture.
The ports are specifically designed for product types where electronics are commonly placed, such as Sideboards with a closed, column-style layout and TV Stands that display the "+ Cable Management" option in the configurator. These units allow you to add a color-matched port with a magnetic cover to keep your cables neat.
This feature is not currently available for Bookcases or Wall Storage units. If you have selected a compatible piece and wish to confirm the placement of the cable opening, please reach out to Tylko Customer Service.