MIL-DTL-38999 Series II connectors feature up to 128 contacts within an environmentally sealed insert, designed for rugged applications with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and 90-degree cable clamp plugs, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure secure connections in demanding environments. Crafted from aluminum with plating options such as cadmium and nickel, these connectors meet stringent military specifications for reliability.