MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering reliable performance in extreme temperatures ranging from -65 °C to 200 °C. These environmentally sealed connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles. With options for straight, RFI grounding, and standard plugs, they ensure secure connections with 90-degree cable clamps. Compliant with military specification MIL-DTL-38999 II, these connectors boast durable aluminum shells with plating choices such as gold, electroless nickel, and RoHS-certified cadmium-free finishes. Ideal for aerospace, defense, and industrial applications, they guarantee longevity with a contact mating life of 500 cycles and reliable conductivity.