The MIL-DTL-38999 Series I connectors offer rugged performance 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. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, ensuring secure connections. With a wide range of plating options, including cadmium-free finishes, they meet RoHS certification standards. Operating from -65°C to 200°C, these connectors are ideal for military and industrial applications requiring durability and reliability.