MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for high-performance connectivity. With front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, they offer versatility in installation. Operating between -65 °C and 200 °C, these connectors ensure reliability in extreme temperatures. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating various applications. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Constructed with high-strength aluminum shells and available in different plating options, including cadmium-free finishes, they meet stringent military specifications. Perfect for demanding environments, these connectors provide durable and reliable electrical connections.