MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range of -65 °C to 200 °C. Designed for harsh environments, these connectors come in various styles including front and rear wall mount, jam nut, and box mount receptacles. With options for straight, RFI grounding, and 90-degree cable clamp plugs, they cater to diverse connectivity needs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable performance. Crafted from aluminum, they come with plating options such as cadmium and nickel for durability. RoHS compliant finishes ensure environmental responsibility. Ideal for military and industrial applications, these connectors deliver high-quality, conductive socket connections with a mating life of 500 cycles.