MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert. These connectors are built to withstand extreme temperatures, with an operating range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount, they offer versatility in installation. With a range of plating options such as gold and electroless nickel, they ensure reliable conductivity. Constructed with aluminum shells and utilizing M39029 rear release crimp contacts, they meet stringent military specifications for durability. RoHS compliant finishes are also available, making them suitable for a wide range of applications requiring secure and high-performance connections.