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 including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. With options for straight, RFI grounding, and standard plugs, as well as multiple shell sizes and insert arrangements, they ensure compatibility for a range of applications. Constructed with aluminum shells and offering plating choices such as gold, electroless nickel, and RoHS compliant finishes, these connectors provide durability and reliability. Suitable for military and industrial use, they meet MIL-DTL-38999 II specifications for performance in demanding conditions.