The 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, they offer versatile connectivity options. Operating between -65 °C and 200 °C, these connectors are environmentally sealed for reliable performance. Compliant with military specifications, they come in high-strength aluminum shells with various plating options, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections in critical applications. Available in 9 shell sizes and 52 insert arrangements, these connectors are ideal for demanding environments that require durability and reliability.