MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with a wide operating temperature range of -65 °C to 200 °C. Available in various receptacle and plug configurations, including front and rear wall mount, jam nut, and box mount options, these connectors offer versatility in connectivity solutions. Compliant with military specification MIL-DTL-38999 II, they ensure reliability and performance in demanding applications. With RoHS-certified finishes and contact plating options like gold, they guarantee enhanced durability and conductivity. The aluminum shells come in different plating options, such as electroless nickel, providing corrosion resistance. These connectors, with their EMI/RFI shielding capabilities and high mating life of 500 cycles, are ideal for military, aerospace, and industrial use, offering secure and efficient electrical connections.