The MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts sealed for protection. Operating between -65°C and 200°C, these connectors offer reliability in extreme conditions. Available in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, they feature removable crimp contacts for easy installation. Made of durable aluminum with options for plating, such as gold and electroless nickel, these connectors ensure optimal conductivity. With a service rating of I and a mating life of 500 cycles, they are suitable for demanding applications. RoHS compliant finishes are available, making them environmentally friendly choices for industrial and military use.