MIL-DTL-38999 Series II connectors with up to 128 contacts offer durable, environmentally sealed connectivity in harsh environments. Operating between -65 °C and 200 °C, these connectors come in various mounting options such as front wall, rear wall, jam nut, and box mount receptacles. Available in aluminum shells with plating options like cadmium and nickel, they meet RoHS standards. Featuring M39029 rear release crimp contacts, they ensure reliable performance for military and industrial applications requiring high temperature and environmental resistance.