MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Operating at temperatures ranging from -65°C to 200°C, these connectors are ideal for demanding applications. They come in 9 shell sizes and 52 insert arrangements, using M39029 rear release crimp contacts in various sizes. Constructed with high strength aluminum shells, they are available in multiple plating options including cadmium-free finishes for RoHS compliance. These connectors are MIL-DTL-38999 I compliant, ensuring reliability and performance in military and industrial settings.