The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts sealed within an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for harsh conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount, they offer flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating different contact types. Constructed with aluminum shells and offering plating options including cadmium-free finishes, they ensure durability and reliability. Ideal for military and industrial applications, these connectors meet stringent MIL-DTL-38999 II specifications.