MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for a variety of applications. Available in multiple shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The connectors come in high-strength aluminum shells with various plating options, including cadmium-free finishes for RoHS compliance. Offering versatility in mounting options such as front wall mount, rear wall mount, and jam nut receptacles, they are ideal for military and aerospace use. The connector family also includes RFI grounding plugs, ensuring reliable signal integrity. With gold-plated contacts, these connectors provide excellent conductivity and mating durability, making them a dependable choice for demanding environments.