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