MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in various plating options, including electroless nickel and cadmium finishes. RoHS compliant options are also available, making them suitable for diverse applications requiring durability and reliability. The MIL-DTL-38999 I connectors are ideal for military and industrial uses, offering superior conductivity and ingress protection for critical operations.