MIL-DTL-38999 Series II connectors, featuring up to 128 contacts in an insert, are designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. These connectors, compliant with military specification MIL-DTL-38999 II, ensure reliable performance with gold-plated removable crimp contacts. With a durable aluminum shell and options for plating including electroless nickel and cadmium finishes, they provide excellent conductivity and environmental resistance. Suitable for demanding situations, these connectors are ideal for use in aerospace, defense, and other rugged industrial applications.