MIL-DTL-38999 Series I connectors are designed for demanding environments, featuring up to 128 contacts housed in a durable insert. With a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors offer versatility for different applications. Constructed with high strength aluminum shells and offering multiple plating options, including RoHS compliant finishes, they provide robust protection against environmental factors. The connectors come in different styles, such as front wall mount, rear wall mount, and jam nut receptacles, with RFI grounding plugs for enhanced functionality. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. Ideal for military and industrial use, MIL-DTL-38999 I connectors deliver high conductivity, with a contact mating life of 500 cycles, making them a reliable choice for critical operations.