MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with a wide operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. Constructed with high-strength aluminum shells, they come in a range of plating options including cadmium-free finishes. With front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide secure connections. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance. Suitable for military and industrial use, they meet MIL-DTL-38999 I specifications for durability and quality.