The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range of -65 °C to 200 °C, they are suitable for a wide range of applications. These connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles, offering versatility in installation. Constructed with aluminum shells and available in different plating options, such as electroless nickel and cadmium finishes, they ensure durability and compatibility. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. Meeting military specifications, they are ideal for demanding environments where ruggedness and performance are essential.