Electronic devices, namely, transmitters for the transmission of RGB, video and audio signals over unshielded twisted pair cable and variants, namely, CAT-5, CAT-5e and CAT-6 cable, receivers for the reception of RGB, video and audio signals over unshielded twisted pair cable and variants, namely, CAT-5, CAT-5e and CAT-6 cable, and switches for switching RGB video and audio signals over unshielded twisted pair cable and variants, namely, CAT-5, CAT-5e and CAT-6 cable