The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with front and rear wall mount options, jam nut, and box mount receptacles. Operating at temperatures ranging from -65 °C to 200 °C, they offer reliable performance in extreme conditions. These connectors, available in aluminum shells with various plating options, meet military specification MIL-DTL-38999 II. With RoHS certified finishes, they ensure environmental compliance while providing durability and conductivity. Ideal for applications requiring secure electrical connections in demanding settings, these connectors offer a high mating cycle life and are designed for optimal performance in challenging environments.