MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors provide reliable performance in harsh conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Featuring gold-plated removable crimp contacts, they ensure secure and durable connections. The aluminum shells come in different plating options, including electroless nickel and cadmium finishes. With a service rating of I and environmental resistance, these connectors are suitable for demanding military and industrial settings.