The MIL-DTL-38999 Series II connectors offer robust functionality for demanding environments, with up to 128 contacts housed in an environmentally sealed insert. Designed for harsh conditions, these connectors have a wide operating temperature range from -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they ensure secure and reliable connections. Featuring multiple shell sizes and insert arrangements, these connectors utilize M39029 rear release crimp contacts for efficient installation. Crafted from durable aluminum, they come with plating options such as cadmium and nickel for enhanced corrosion resistance. With a mating cycle life of 500 cycles, these connectors are ideal for military and industrial applications requiring high-performance connectivity in challenging settings.