The 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. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Offered in aluminum shells with multiple plating options, including cadmium-free finishes, these connectors ensure reliable performance. With options for straight, RFI grounding, and standard plugs, as well as a range of shell sizes and insert arrangements, they provide flexibility for diverse connectivity needs. Meeting military specification MIL-DTL-38999 II, these circular connectors are suitable for demanding environments where durability and performance are essential.