MIL-DTL-38999 Series I connectors are built for rugged environments, featuring up to 128 contacts and a wide operating temperature range of -65 °C to 200 °C. These connectors, available in 9 shell sizes and 52 insert arrangements, offer versatility in design. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they ensure secure connections. The high-strength aluminum shells come in various plating options, including cadmium-free finishes for environmental compliance. Utilizing M39029 rear release crimp contacts, these connectors guarantee reliable performance in demanding applications.