The MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts in an insert for secure connectivity. Operating within a wide temperature range from -65 °C to 200 °C, these connectors are built for durability. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. With options for straight, RFI grounding, and standard plugs, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating different needs. Made from aluminum with plating options including electroless nickel and cadmium finishes, they ensure reliable performance. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for applications requiring rugged and reliable electrical connections.