MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert that is environmentally sealed for reliable performance. With an operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. The connectors come in high-strength aluminum shells with a choice of plating options, including gold, electroless nickel, and cadmium finishes. Meeting military specification MIL-DTL-38999 I, they ensure durability and performance in aerospace and defense applications. With a bayonet coupling mechanism and wall mount options, these connectors provide secure and efficient connectivity.