The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for high-density connectivity. With an operating temperature range from -65°C to 200°C, they are suitable for a wide range of applications. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections. Constructed with aluminum shells and offering a choice of plating options, including cadmium and nickel, they provide durability and corrosion resistance. Meeting military specifications, these connectors are ideal for demanding environments where performance and reliability are essential.