The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 200 °C, they offer reliable performance in extreme conditions. Available in various mounting options such as front wall mount, rear wall mount, and jam nut receptacles, these connectors meet military specifications for durability. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Constructed with high-strength aluminum shells and offering a range of plating options including cadmium-free finishes, they provide versatility for diverse applications. With RoHS compliant options, these connectors guarantee both performance and environmental responsibility.