MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range of -65 °C to 200 °C, they offer durability in extreme conditions. Available in various receptacle styles, including front and rear wall mount, jam nut, and box mount options, they provide versatility for different applications. These connectors come in aluminum shells with options for plating, such as gold, electroless nickel, and cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for demanding aerospace, defense, and industrial settings.