The MIL-DTL-38999 Series II connectors are designed for rugged environments, with up to 128 contacts housed in a secure insert. These connectors are built to withstand extreme temperatures, ranging from -65°C to 200°C, making them ideal for harsh operating conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, and utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. Available in aluminum shells with multiple plating choices, including RoHS compliant finishes, these connectors meet stringent military specifications for performance and durability. Perfect for applications requiring secure, high-quality electrical connections in demanding environments.