MIL-DTL-38999 Series II connectors feature up to 128 contacts within an environmentally sealed insert, designed for harsh environments with an operating range of -65 °C to 200 °C. Available in various mount types including front and rear wall, jam nut, and box mount receptacles, as well as straight and RFI grounding plugs with 90-degree cable clamps. Compliant with military specification MIL-DTL-38999 II, these connectors come in aluminum shells with options for plating finishes such as electroless nickel and iridescent yellow cadmium. With RoHS-certified cadmium-free alternatives, they offer reliable connectivity for applications requiring durability and performance in challenging settings.