The MIL-DTL-38999 Series II connectors are designed for rugged environments, offering reliable performance with up to 128 contacts in an insert. These connectors are environmentally sealed, ensuring durability in harsh conditions, with an operating temperature range from -65°C to 200°C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. Featuring straight, RFI grounding, and standard plugs with a 90-degree cable clamp, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Constructed with aluminum shells and offered in different plating options such as cadmium and nickel, they meet diverse industrial needs. With RoHS compliant finishes available, these connectors are suitable for a wide range of applications requiring high-performance connectivity in challenging environments.