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 feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts in various sizes, ensuring reliable connections. Constructed with high-strength aluminum shells and offering a choice of plating options, including RoHS certified finishes, they guarantee durability and compatibility. Operating in temperatures ranging from -65°C to 200°C, these connectors are ideal for demanding applications that require secure and efficient electrical connections.