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 from -65 °C to 200 °C, these connectors offer durability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come with plating options including cadmium-free finishes for RoHS compliance. Offering front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, these connectors meet military specification MIL-DTL-38999 I standards, making them ideal for demanding applications.