MIL-DTL-38999 Series II connectors boast up to 128 contacts enclosed in an insert, providing robust environmental sealing for reliable performance in harsh conditions. With an impressive operating temperature range from -65 °C to 200 °C, these connectors are designed for versatility. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Crafted from aluminum with various plating options such as electroless nickel, they offer durability and corrosion resistance. Certified for RoHS compliance, they ensure environmental responsibility. Perfect for military and industrial applications, these connectors guarantee efficient and long-lasting performance in demanding environments.