MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles available, they offer versatile connectivity options. These circular connectors, compliant with military specification MIL-DTL-38999 I, ensure reliable performance in extreme conditions, with an operating temperature range from -65 °C to 200 °C. Constructed with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes. Suitable for aerospace, defense, and industrial applications, these connectors guarantee secure and durable electrical connections.