1.Shielded RJ45 panel mount CAT6A extender is an extend the Ethernet connection by connecting two short network cables together.solve the problem that the network cable is not long enough. 2.RJ45 female to female field installable coupler, no need installation tools, just plug the standard crystal head directly for quick installation. 3. Cat6 RJ45 coupler provides feed-through Cat5/5e/6 ethernet connectivity for data in home or industrial environments. Completely shielding interference, making the transmission faster and more stabl 4.The additional cover for the RJ45 panel mount bulkhead includes a waterproof/dustproof cover to provide you with a waterproof Ethernet pass-through coupler connection. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store