MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts, ideal for harsh environments. Featuring environmentally sealed inserts and a wide operating temperature range from -65 °C to 200 °C, these connectors ensure reliable operation in demanding conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. With straight, RFI grounding, and standard plug options, as well as 52 insert arrangements utilizing M39029 rear release crimp contacts, these connectors provide versatility in design. Crafted from aluminum with plating options such as cadmium and electroless nickel, they guarantee durability and corrosion resistance. Designed for military specifications, these connectors meet stringent performance standards, making them suitable for a wide range of applications requiring secure and efficient electrical connections.