The MIL-DTL-38999 Series II connectors boast a rugged design with up to 128 contacts, ensuring reliable performance in harsh environments. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility for different applications. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for extreme conditions. Constructed with aluminum shells and available in multiple plating options including electroless nickel and cadmium finishes, they provide durability and corrosion resistance. Compliant with military specification MIL-DTL-38999 II, these circular connectors are ideal for aerospace, defense, and industrial applications where high reliability is essential.