This Wall Eye ethernet port provides a dressed 3/4" opening through a standard wall or other barrier with a thickness of between 3 7/8" - 5 3/8". The port allows the running of up to 4 ethernet cables or 2 coaxial cables through an aesthetically pleasing hole. This is one of many port options offered by Wall Eye Solutions. We recommend a 1 3/8" hole for the installation of this unit.