The MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts in an insert. These circular connectors are designed for durability, with an operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, they provide flexibility for different applications. The connectors come in high-strength aluminum shells with a choice of plating options, including cadmium-free finishes. With MIL-DTL-38999 I certification, they meet stringent military specifications for reliability. Suitable for front and rear wall mount as well as jam nut receptacles, these connectors ensure secure electrical connections in demanding settings.