The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The connectors come in aluminum shells with options for plating finishes including electroless nickel and cadmium. Meeting military specification MIL-DTL-38999 II, they ensure robust connectivity with gold-plated contacts. Suitable for demanding scenarios, these connectors are ideal for aerospace, defense, and industrial applications.