MIL-DTL-38999 Series II connectors boast up to 128 contacts in a sealed insert, designed for harsh environments with an operating range from -65 °C to 200 °C. Featuring various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts, ensuring reliable connectivity. Crafted from aluminum with plating options including cadmium and nickel, they meet RoHS standards for environmental compliance. Ideal for military and industrial applications, these connectors guarantee performance and durability in demanding settings.