MIL-DTL-38999 Series II connectors offer up to 128 contacts in a single insert, providing robust connectivity in harsh environments. With an operating temperature range spanning from -65 °C to 200 °C, these connectors are ideal for demanding applications. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering plating options including electroless nickel and cadmium finishes, they ensure durability and corrosion resistance. Meeting MIL-DTL-38999 II military specifications, these connectors are designed for high-performance and longevity in challenging conditions.