MIL-DTL-38999 Series II connectors, featuring up to 128 contacts in an insert, are designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These connectors, available in various mount types such as front and rear wall mount, jam nut, and box mount receptacles, offer versatility in applications. With options for straight, RFI grounding, and standard plugs, they ensure secure connections with 90-degree cable clamps. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, providing flexibility for different setups. Crafted from aluminum, they offer durability and are available in plating options like electroless nickel for enhanced protection. RoHS compliant finishes ensure environmental responsibility, making them ideal for military and industrial use.