The MIL-DTL-38999 Series II connectors boast a high contact density of up to 128, enclosed within a durable insert for secure connectivity. Designed for harsh environments, these connectors are fully sealed and can operate in extreme temperatures ranging from -65°C to 200°C. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. With RoHS certified cadmium-free finishes, including options like electroless nickel and black anodized aluminum, they ensure reliability while meeting environmental standards. Featuring removable crimp contacts and a bayonet coupling for easy installation, these connectors are ideal for military and industrial use, guaranteeing long-lasting performance with a minimum mating life of 500 cycles.