The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts within an insert for secure connections. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for harsh conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Made with aluminum shells and plated with options like electroless nickel, they provide durability and corrosion resistance. Compliant with military specification MIL-DTL-38999 II, these connectors ensure reliability in demanding applications.