The MIL-DTL-38999 Series I connectors offer high performance in harsh environments, featuring up to 128 contacts sealed for environmental protection. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they come in wall mount, rear mount, and jam nut receptacles, with RFI grounding options. Utilizing M39029 crimp contacts, they ensure reliable connectivity, while the aluminum shells with multiple plating options guarantee durability. RoHS compliant versions are also available, making them suitable for diverse industrial and military uses.