The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility in applications. These connectors come in high-strength aluminum shells with options for plating finishes, including cadmium-free choices. The series includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, all meeting stringent military specifications for reliability. With gold-plated, removable crimp contacts and bayonet mating, they ensure secure and durable connections. Perfect for demanding environments, these connectors provide excellent performance, with RoHS compliance available for specific finishes.