The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts within an insert and offering reliable performance in temperatures ranging from -65 °C to 200 °C. These connectors come in various configurations such as front and rear wall mounts, jam nuts, and box mounts, providing versatility for different applications. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Compliant with military specifications, they ensure durability and quality, making them ideal for demanding scenarios. The aluminum shells are available with different plating options, including cadmium-free finishes for environmental consideration. Overall, these connectors guarantee secure and efficient electrical connections in harsh conditions.