The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering robust environmental sealing and wide operating temperatures from -65 °C to 200 °C. These harsh environment connectors come in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, with straight, RFI grounding, and standard plugs available. Compliant with military specification MIL-DTL-38999 II, they ensure reliable performance in demanding applications. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, these connectors are suitable for diverse industrial and military uses.