MIL-DTL-38999 Series II connectors boast exceptional versatility with up to 128 contacts housed in a robust insert, ensuring reliable performance in harsh environments. Designed for wall mounting, these connectors come in various configurations like front and rear wall mount, jam nut, and box mount receptacles. Featuring durable aluminum shells with multiple plating options, including cadmium-free finishes, they offer enhanced corrosion resistance. Operating efficiently in temperatures ranging from -65 °C to 200 °C, these connectors are ideal for military and aerospace applications. Mating is facilitated by a bayonet coupling, while removable crimp contacts ensure easy installation. With a service rating of II and a service class of E, they guarantee long-lasting performance, making them a preferred choice for demanding industrial settings.