MIL-DTL-38999 Series II connectors are designed for rugged environments, offering reliable connectivity with up to 128 contacts in an insert. These environmentally sealed connectors operate in temperatures ranging from -65 °C to 200 °C, ensuring performance in harsh conditions. Available in various mounting options such as front wall, rear wall, jam nut, and box mount receptacles, they meet diverse installation needs. With options for straight, RFI grounding, and standard plugs, featuring M39029 rear release crimp contacts, these connectors cater to a wide range of applications. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they provide durability and corrosion resistance. Suitable for military and industrial use, these connectors guarantee secure and efficient electrical connections.