Designed to be used with the Starlink ethernet adapter. RJ45 female to female coupler. Provides feed-through Cat5/5e/6 ethernet connectivity for data and PoE in industrial environments. EASY INSTALLATION: It is miniaturization, and save installation space. No soldering, no installation tools, just plug the standard crystal head directly for quick installation. The industrial panel mount bulkhead includes a water/dust cap that meets IP67 Water Protection. It is not waterproof without water/dust cap. The bulkhead comes with O-ring to ensure that water does not penetrate from the outside. Port only. Ethernet cord not included.  If added to cart with an "On the go" Case, we will install the port at no charge.