The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering reliable performance with up to 128 contacts in an insert. These circular connectors feature various mount types, including front and rear wall mount, jam nut, and box mount receptacles, with options for straight, RFI grounding, and standard plugs. With an operating temperature range of -65°C to 200°C, they are suitable for a wide range of applications. Constructed with aluminum shells and available in multiple plating options, including RoHS certified finishes, these connectors ensure durability and environmental resilience. Utilizing M39029 rear release crimp contacts, they guarantee secure connections in demanding conditions. Perfect for military and industrial use, the MIL-DTL-38999 Series II connectors provide superior performance and reliability.