The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for harsh conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Constructed with aluminum shells and plated with options like electroless nickel, they provide durability and reliability. With RoHS compliant finishes, these connectors meet environmental standards. Perfect for military and industrial applications, they offer high-performance connectivity in demanding settings.