The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, suitable for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options such as wall mount, jam nut, and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with plating options including electroless nickel and cadmium finishes. With gold-plated removable crimp contacts, they ensure reliable conductivity, suitable for applications requiring durability and performance in challenging conditions.