The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed in an insert. With an operating temperature range of -65°C to 200°C, these connectors are ideal for rugged applications. Available in various shell sizes and insert arrangements, they offer versatility in design. The connectors come in high strength aluminum shells with options for plating such as cadmium and electroless nickel, ensuring durability. Suitable for military and industrial use, they meet stringent environmental standards. With front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, these connectors provide reliable connectivity in demanding conditions.