MIL-DTL-38999 Series I connectors offer up to 128 contacts in an insert, providing durable and environmentally sealed connectivity for harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with high-strength aluminum shells and offering a choice of plating options, including cadmium-free finishes, they meet stringent military specifications for performance and reliability.