The MIL-DTL-38999 Series II connectors boast up to 128 contacts within an insert, offering robust environmental sealing and a wide operating temperature range from -65 °C to 200 °C. These connectors, available in various styles like front wall mount and jam nut, feature thin walls and restricted lengths for efficient use in harsh environments. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Constructed with aluminum shells and plated with finishes like electroless nickel, they ensure durability and reliable performance. Compliant with military specifications, these connectors are designed for demanding applications, providing secure and efficient electrical connections in challenging conditions.