The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts housed in a sealed insert, ideal for harsh environments. Designed for durability, they feature front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize rear release crimp contacts for secure connections. Crafted from high-strength aluminum, they come in various plating options, including cadmium-free finishes. With a wide operating temperature range of -65°C to 200°C, they meet stringent military specifications for performance and reliability in demanding applications.