MIL-DTL-38999 Series II connectors feature up to 128 contacts within their environmentally sealed insert, designed for rugged use in harsh environments. With an operating temperature range of -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in multiple sizes. Constructed with aluminum shells and offering plating options like cadmium and nickel, they ensure durability and corrosion resistance. Trusted for military applications, these connectors meet MIL-DTL-38999 II specifications, guaranteeing high-quality performance and compliance with stringent standards.