The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with plating options including gold, electroless nickel, and cadmium-free finishes, ensuring reliable performance and environmental compliance. Utilizing M39029 crimp contacts, they guarantee secure connections with 500 mating cycles. Offering exceptional conductivity and ingress protection, these connectors are suitable for a range of military and industrial applications.