The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatile connectivity options. Operating at temperatures ranging from -65 °C to 200 °C, these connectors are ideal for demanding applications. Constructed with high-strength aluminum shells and available in various plating options, including cadmium-free finishes, they ensure reliable performance. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating diverse needs. Suitable for military and industrial use, they provide secure and durable electrical connections.