MIL-DTL-38999 Series II connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles such as front wall, rear wall, jam nut, and box mount receptacles, they offer versatility for different applications. With options for straight, RFI grounding, and standard plugs, along with multiple shell sizes and insert arrangements, these connectors ensure reliable connectivity. Constructed with aluminum shells and various plating options, including cadmium-free finishes, they meet stringent military specifications for durability and performance. Ideal for aerospace, defense, and industrial applications, these connectors provide efficient electrical connections in demanding environments.