MIL-DTL-38999 Series II connectors are designed for harsh 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 offer reliable performance. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. The connectors utilize M39029 rear release crimp contacts, and are constructed with aluminum shells offering durability. Plating options such as electroless nickel and cadmium finishes ensure optimal protection. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for applications requiring rugged and secure electrical connections.