MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in a rugged insert design. Ideal for harsh environments, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Crafted from high strength aluminum, they come in various plating options including cadmium and nickel finishes. Operating temperature ranges from -65°C to 200°C, making them suitable for a wide range of applications. RoHS compliant options available.