An embodiment connector assembly includes a housing including an inner space formed therein, wherein ends of a main-line terminal and a sub-line terminal are inserted into a first side of the inner space, a main-line port inserted into and fixed to the inner space of the housing and electrically connected to the end of the main-line terminal inserted into the inner space, a sub-line port inserted into and fixed to the inner space of the housing and electrically connected to the end of the sub-line terminal inserted into the inner space, and a noise filter disposed between the main-line port and the sub-line port and electrically connected to each of the main-line port and the sub-line port, wherein the noise filter is configured to reduce a noise in a signal transmitted between the main-line port and the sub-line port.