MIL-DTL-38999 Series II connectors boast up to 128 contacts within a sealed insert, designed for rugged environments with a wide operating temperature range of -65 °C to 200 °C. Available in various mounting styles like front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Featuring aluminum shells with options for cadmium-free plating, including gold contacts for optimal conductivity, these connectors ensure reliable performance. With MIL-DTL-38999 II compliance and RoHS certification, they meet stringent military and environmental standards, making them ideal for demanding industrial and aerospace environments.