MIL-DTL-38999 Series II connectors feature up to 128 contacts within an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These connectors come in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, offering versatility for different applications. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts in multiple sizes, including 22D, 22M, 22, 20, 16, and 12, these connectors ensure reliable performance. Constructed with aluminum shells and available in plating options like electroless nickel and cadmium finishes, they meet stringent military specifications. Ideal for applications requiring rugged, environmentally sealed connectors, the MIL-DTL-38999 Series II is a dependable choice for demanding environments.