The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer versatile installation options. These connectors, compliant with military specification MIL-DTL-38999 II, ensure reliable performance in temperatures ranging from -65 °C to 200 °C. Constructed with aluminum shells and available in various plating options, including gold, they guarantee durability and efficient conductivity. With a bayonet coupling and removable crimp contacts, they provide easy and secure mating. Ideal for applications requiring environmental resistance, these connectors are suitable for use in demanding military and industrial settings.