MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors come in aluminum shells with plating options such as cadmium and nickel. Offering RoHS certified finishes, they ensure reliable connectivity with removable crimp contacts, ideal for military and aerospace applications.