MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert that's environmentally sealed for reliable performance. With an impressive operating temperature range from -65 °C to 200 °C, these connectors are built to withstand harsh conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with options for plating, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Suitable for military and industrial applications, these connectors meet stringent standards for performance and reliability.