The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for secure connectivity. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, they offer flexibility in installation. The connectors come in aluminum shells with plating options including gold, electroless nickel, and cadmium-free finishes, ensuring durability and reliability. Meeting military specification MIL-DTL-38999 II, they are suitable for use in aerospace, defense, and other rugged environments.