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, these connectors offer reliable performance in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. The plugs, offered in straight, RFI grounding, and standard configurations with 90-degree cable clamps, ensure secure connections. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they provide both durability and versatility. Compliant with RoHS regulations, these connectors are ideal for military and industrial applications requiring rugged and reliable connectivity solutions.