RJ45 feedthrough receptacle, black D-shape metal flange with the latch lock. Mounting screws included. The etherCON series is a ruggadized and lockable RJ45 connector system, optimized for proaudio, video and lightning network applications. The chassis connectors are shaped to fit into standardized panels out of the entertainment industry. The D-series offers the most rugged design of the etherCON series and is perfectly suitable for panel mount and the installer market.