MIL-DTL-38999 Series II connectors offer reliable performance in harsh environments, featuring up to 128 contacts housed in an environmentally sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting configurations including front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles, they provide versatility in installation. The plugs, offered in straight, RFI grounding, and standard configurations, come with a 90-degree cable clamp for secure connections. Compliant with military specification MIL-DTL-38999 II, these connectors boast rugged construction with aluminum shells and a selection of plating options, ensuring durability in demanding conditions. The use of M39029 rear release crimp contacts guarantees reliable electrical connections, while RoHS-certified finishes cater to environmental regulations. Suitable for use in military and industrial settings, these connectors are designed for high-performance and longevity, with a service rating of M and service class detail of Environment Resistant Box and Through Bulkhead Mounting Receptacle Types.