The MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The connectors come in aluminum shells with plating options including electroless nickel and cadmium finishes, meeting stringent military specifications. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. With a compact design and durable construction, these connectors are ideal for aerospace, defense, and industrial applications requiring high performance in challenging environments.