MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Constructed with high strength aluminum shells and RoHS-compliant plating options like gold, electroless nickel, and cadmium-free finishes, they ensure reliable performance. Suitable for military and industrial applications, these connectors are known for their durability and conductivity, making them ideal for demanding environments.