MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These connectors, available in various mounting styles like front and rear wall mount, jam nut, and box mount, offer versatility in applications. With options for straight, RFI grounding, and standard plugs with a 90-degree cable clamp, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts in different sizes, including 22D, 22M, 22, 20, 16, and 12, these connectors ensure reliable performance. Crafted from aluminum, they come in plating choices like electroless nickel, cadmium olive drab, and black anodized aluminum, with RoHS compliant cadmium-free finishes available. Suitable for military and industrial applications requiring durability and high performance, these connectors are a dependable choice for critical operations.