MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, suitable for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, they provide secure connections with RFI grounding plugs. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliability. Constructed with high-strength aluminum shells and various plating options, including cadmium-free finishes, they ensure durability and corrosion resistance. RoHS compliant and designed for military specifications, these connectors guarantee performance and longevity in critical systems.