It has signal passage so it allows to perform a series installation of several socket.
The Pass-Through Outlet R-TV (Part number: 5233) from Televes is a White Coaxial Outlet with a Passage and a TV/Radio-SAT network type . Outlets are a square shape box with one or more sockets. These terminal points of coaxial cables, are usually fixed to walls where they are next connected directly to the customer's television or cable box. They can be intermediate or termina. The intermediate taps keeps transmiting the signal to another room, while terminal taps terminates the instalation.
Pass-through socket with two CEI connectors. The one on the left is a male CEI for terrestrial TV and the one on the right is a female CEI for radio (FM). Only metal body, Wallplate cover is sold separated.