MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors offer reliability in extreme conditions. Available in various mounting options such as front wall mount, rear wall mount, and jam nut receptacles, they provide flexibility for different applications. The connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax variants. Constructed with high-strength aluminum shells and offering a choice of plating options, including cadmium-free finishes, they ensure durability and performance. Compliant with MIL-DTL-38999 I specifications, these connectors are ideal for military, aerospace, and industrial applications requiring rugged and reliable connectivity.