Bnc male plug to rca male plug adapter this adapter will let you convert any rca connection into a bnc connection.A female rca connector will attach to the male end, and convert the video signal into bnc.Allows to interconnect between different cable inputs and outputs securely transmits bnc audio or video signals to rca good to use with cctv system connector 1: bnc male connector 2: rca male