MIL-DTL-38999 Series II connectors are designed for demanding environments, offering up to 128 contacts in a single insert. With a wide operating temperature range from -65 °C to 200 °C, these connectors are ideal for harsh conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The plugs come in straight, RFI grounding, and standard configurations, with options for different contact sizes. Constructed with aluminum shells and available in multiple plating finishes including cadmium-free options, they ensure durability and reliability. MIL-DTL-38999 II connectors are widely used in military and aerospace applications, meeting stringent performance standards.