MIL-DTL-38999 Series II connectors are engineered for rugged environments, featuring up to 128 contacts within an insert. These connectors boast exceptional durability, with an operating temperature range from -65°C to 200°C. Available in various mounting configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. The connectors come in aluminum shells with options for plating finishes like electroless nickel and cadmium olive drab. With RoHS certified cadmium-free finishes available, they ensure compliance with environmental regulations. Ideal for military and industrial use, these connectors guarantee reliable performance with a service rating of I and a mating life of 500 cycles.