The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts sealed for optimal protection. With an operating temperature range of -65°C to 200°C, they ensure reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility for different applications. They come in aluminum shells with plating options including cadmium-free finishes, providing durability and corrosion resistance. Meeting military specifications, these connectors are ideal for use in aerospace, defense, and industrial sectors where ruggedness and performance are essential.