The MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts within a sealed insert. Designed for durability, they can operate in temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with options for plating, including cadmium-free finishes. With front and rear wall mount options, as well as jam nut receptacles, they ensure secure connections. Utilizing M39029 crimp contacts, they guarantee reliable performance with a mating life of 500 cycles. Meeting military specifications, these connectors are ideal for applications requiring environmental resistance and high conductivity.