The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range (-65°C to 200°C), they ensure reliable performance in demanding conditions. Available in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. The aluminum shells come with different plating options, such as cadmium and nickel, catering to specific requirements. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. RoHS compliant finishes are also available. Perfect for military and industrial applications, these connectors are known for their durability and conductivity.