MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments with up to 128 contacts, featuring front wall mount, rear wall mount, and jam nut receptacles. Designed to withstand extreme temperatures ranging from -65°C to 200°C, these connectors are environmentally sealed for reliable operation. Compliant with military specification MIL-DTL-38999, they ensure durability and performance in demanding applications. With a variety of plating options available, including gold, electroless nickel, and cadmium-free finishes, these connectors provide excellent conductivity and corrosion resistance. The aluminum shells come in 9 sizes and 52 insert arrangements, accommodating a range of connection needs. Suitable for military, aerospace, and industrial use, MIL-DTL-38999 Series I connectors are a trusted solution for critical applications.