MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors provide reliable performance in extreme conditions. Available in various mounting options including front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating different contact sizes. Constructed with aluminum shells and offering plating options such as electroless nickel, they ensure durability and corrosion resistance. Suitable for military applications, these connectors meet the stringent requirements of MIL-DTL-38999 II, making them ideal for demanding environments.