MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65 °C to 200 °C, these connectors ensure reliable performance in harsh conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in application. The connectors, made of aluminum, come in different plating options such as electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for demanding aerospace and defense applications.