MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Constructed with aluminum shells and plated with options like electroless nickel and cadmium finishes, these connectors ensure durability and reliability. Compliant with military specification MIL-DTL-38999 II, they are ideal for use in demanding industrial and military settings.