MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in a single insert. Designed for harsh environments, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. With a wide operating temperature range of -65°C to 200°C, they ensure reliable performance in demanding conditions. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating various contact types. Constructed with high-strength aluminum shells and available in different plating options including gold, electroless nickel, and cadmium-free finishes, they provide durability and corrosion resistance. With a mating life of 500 cycles and conductivity, these connectors are ideal for military and industrial applications requiring secure and stable electrical connections.