MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Built for harsh environments, they can operate between -65°C and 200°C. These connectors come in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, with straight or 90-degree cable clamp plugs available. Compliant with military specifications, they feature gold-plated contacts and are RoHS certified with options for cadmium-free finishes. The durable aluminum shells, in 9 sizes with 52 insert arrangements, ensure reliable performance in demanding applications.