The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, they are built for reliability in demanding conditions. These connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts. Constructed with aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, these connectors ensure robust performance. With RoHS compliant cadmium-free options, they meet environmental standards. Perfect for military and industrial applications, these connectors provide secure and durable electrical connections.