MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts, sealed for environmental protection and durable in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options including front wall, rear wall, jam nut, and box mount receptacles, they cater to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Crafted from aluminum with plating options such as cadmium and nickel, they ensure reliability in demanding environments. Meeting stringent military specifications, these connectors are ideal for aerospace, defense, and industrial applications.