MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts, suitable for harsh environments. These connectors, available in various shell sizes and insert arrangements, feature front and rear wall mount options, along with jam nut receptacles and RFI grounding plugs. Constructed with high-strength aluminum shells and offering a wide range of plating choices, including RoHS-certified finishes, they ensure reliable performance in demanding conditions. With a wide operating temperature range from -65 °C to 200 °C and utilizing M39029 rear release crimp contacts, these connectors are ideal for military and aerospace applications.