The MIL-DTL-38999 Series I connectors offer high-performance connectivity, with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they can operate in temperatures ranging from -65°C to 200°C. Featuring front and rear wall mount options, as well as jam nut receptacles, this connector family ensures secure connections. With various shell sizes and insert arrangements available, including M39029 rear release crimp contacts, they offer versatility for different applications. The connectors are constructed with high-strength aluminum shells and come with a choice of plating options, including RoHS certified cadmium-free finishes. Perfect for military and industrial use, these connectors combine durability and reliability in demanding environments.