MIL-DTL-38999 Series I connectors boast up to 128 contacts housed in an insert, offering robust environmental sealing for reliable performance in harsh conditions. With an impressive 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 feature M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax options. Constructed with high-strength aluminum shells, they come in a range of plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Offering RoHS certified cadmium-free finishes, these connectors are designed for military specifications, making them suitable for critical operations where reliability is paramount.