MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for various applications. These connectors come in different configurations such as front wall mount, rear wall mount, jam nut, and box mount receptacles, offering versatility in installation. Available in aluminum shells with multiple plating options, including cadmium-free finishes, they ensure reliable performance. The use of M39029 crimp contacts guarantees secure connections, with options for straight, RFI grounding, and 90-degree cable clamp plugs. Meeting military specifications, these connectors are ideal for demanding environments where durability and performance are essential.