MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with plating options such as electroless nickel and cadmium finishes, they offer reliable performance in demanding conditions. Certified for RoHS compliance, these connectors are ideal for military and industrial applications requiring rugged connectivity.