MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts housed in an insert. These connectors are environmentally sealed, with a wide operating temperature range from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. With options for straight, RFI grounding, and standard plugs, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity in demanding conditions. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors guarantee durability and performance. Suitable for military and industrial use, the MIL-DTL-38999 Series II connectors are essential for applications requiring rugged and reliable electrical connections.