The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts within their environmentally sealed inserts. Designed for harsh environments, these connectors operate flawlessly in temperatures ranging from -65 °C to 200 °C. Featuring front and rear wall mount options, as well as jam nut receptacles, they provide versatile installation choices. The RFI grounding plugs ensure reliable signal integrity. Available in 9 shell sizes and 52 insert arrangements, including M39029 rear release crimp contacts, these connectors cater to various application needs. Crafted from high-strength aluminum, they come in different plating options like cadmium and nickel for enhanced durability. With RoHS-certified finishes available, these connectors meet stringent environmental standards, making them ideal for military and industrial applications.