The MIL-DTL-38999 Series II connectors feature up to 128 contacts housed 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 including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, these connectors accommodate different cable configurations. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating choices such as cadmium and nickel, they meet diverse application requirements. RoHS compliant finishes are also available, catering to environmental standards. Suitable for military and industrial use, these connectors provide reliable performance in demanding conditions.