MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert. These circular receptacles, available in various mounting options like jam nut, offer reliable connectivity with a bayonet coupling. Ideal for military applications, they meet stringent MIL-DTL-38999 II specifications, ensuring durability in rugged conditions. With gold-plated contacts and aluminum shells, they guarantee optimal conductivity and corrosion resistance. Operating efficiently in temperatures ranging from -65 °C to 175 °C, these connectors are essential for demanding industrial and defense systems. With RoHS compliant finishes available, they are suitable for a wide range of applications requiring secure and high-performance electrical connections.