MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert for secure connectivity. With front and rear wall mount options, as well as jam nut and box mount receptacles, they offer versatile installation. Operating efficiently in temperatures ranging from -65 °C to 200 °C, these connectors ensure reliable performance in demanding conditions. With various plating options available, including gold and electroless nickel, they cater to specific application needs. RoHS certified finishes are also offered for environmentally conscious operations. Constructed with aluminum shells, these connectors are durable and conductive, meeting stringent military specifications for quality and reliability. Ideal for aerospace, defense, and industrial applications, they guarantee 500 mating cycles and effective environmental resistance, making them essential components for critical systems.