The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, they offer reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors meet military specifications for durability and functionality. Constructed with aluminum shells and offering a range of plating options including gold and electroless nickel, they ensure long-lasting conductivity. Suitable for applications requiring secure and robust connections, these connectors are ideal for aerospace, defense, and industrial use.