MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for different plating finishes. Meeting military specifications, they are environmentally sealed and offer RFI grounding. Suitable for front wall mount, rear wall mount, and jam nut receptacles, they use M39029 rear release crimp contacts for secure connections. These connectors, with RoHS-certified finishes available, are ideal for demanding applications that require durability and reliability.