Lorex CBLB120U 120 foot BNC/Power extension cable is ideal for running along walls, inside walls and between floors. Connect up to 2 identical Lorex 120 ft. extension cables, plus one 60 foot extension cable for a maximum of 300 feet without degradation to video images or current. This cable meets the requirements and standards of UL/CUL and is CMR (Riser) rated.