MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. With an operating temperature range from -65 °C to 200 °C, these connectors are ideal for a wide range of applications. They come in 9 shell sizes and 52 insert arrangements, using M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and available in various plating options including cadmium-free finishes, these connectors ensure durability and reliability. Perfect for military and industrial use, they meet MIL-DTL-38999 I specifications and offer RoHS compliance for environmental responsibility.