The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing for reliable performance. Operating between -65 °C and 200 °C, these connectors offer versatility in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount, they cater to diverse applications. With options for straight, RFI grounding, and standard plugs, each connector is meticulously engineered for optimal connectivity. The aluminum shells come in different plating options, such as electroless nickel and cadmium finishes, ensuring durability and corrosion resistance. Meeting stringent military specifications, these connectors guarantee high performance and reliability in demanding situations.