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 a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for rugged applications. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors utilize M39029 rear release crimp contacts, ensuring secure connections. Constructed with aluminum shells and plated with options like electroless nickel and cadmium finishes, they provide durability and corrosion resistance. Meeting MIL-DTL-38999 II military specifications, these connectors are reliable for demanding environments, making them essential components for a range of applications.