MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and an operating temperature range of -65 °C to 200 °C, they offer reliable performance in demanding conditions. Available in various mounting styles like front and rear wall mount, jam nut, and box mount receptacles, these connectors are versatile. The plugs, including straight and 90-degree cable clamp options, use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering plating choices such as cadmium and nickel, they ensure durability. Meeting military specifications, these connectors are ideal for applications requiring rugged and dependable electrical connectivity.