MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed for reliable performance, with an 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, along with RFI grounding plugs, they provide secure connections in demanding conditions. Utilizing M39029 rear release crimp contacts, these connectors ensure efficient and durable connectivity. Suitable for military and industrial use, they meet MIL-DTL-38999 I specifications, guaranteeing quality and performance.