MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts housed in a durable insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front wall mount, rear wall mount, jam nut, and more, they provide flexibility for different applications. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure reliable connections. Constructed with aluminum shells and available in different plating options including gold and electroless nickel, they meet stringent military specifications for durability. RoHS compliant finishes are also available, making them suitable for a wide range of industries.