The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed for protection. With a wide operating temperature range of -65 °C to 200 °C, these connectors are reliable in extreme conditions. Available in various shell sizes and insert arrangements, they offer versatility in applications. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS certified finishes, they ensure durability and performance. The connectors, compliant with military specification MIL-DTL-38999 I, come in different styles such as wall mount, rear mount, and jam nut receptacles, meeting diverse connectivity needs in demanding settings. Suitable for use in aerospace, defense, and industrial applications, these connectors guarantee secure and efficient electrical connections.