MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering exceptional durability and performance in harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors are designed for reliability in extreme conditions. Available in various mounting options including front wall, rear wall, jam nut, and box mount receptacles, they provide flexibility for different applications. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating a wide range of contact sizes. Constructed with aluminum shells and offering multiple plating options, including cadmium-free finishes, they meet stringent military specifications for quality and performance. Suitable for military, aerospace, and industrial applications, these connectors ensure secure and efficient electrical connections in demanding environments.