AC to DC converters; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Computer network adapters, switches, routers and hubs; Computer network bridges; Computer network switches; Computer switches; Electric converters; Electronic equipment, namely, transformers, baluns, and cables, all used in connection with computers, computer peripheral devices, televisions, audio-video equipment, closed-circuit TV equipment and telec...