MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 gold-plated contacts in a durable aluminum shell. With operating temperatures ranging from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various plating options including electroless nickel, they are environmentally sealed and RoHS compliant. The insert arrangements, utilizing M39029 rear release crimp contacts, cater to diverse connectivity needs. Offering front wall mount, rear wall mount, and jam nut receptacles with bayonet coupling, they ensure secure connections. Suitable for military and industrial applications, these connectors provide conductivity and ingress protection, making them ideal for use in demanding environments.