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 are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize rear release crimp contacts for secure connections. The high strength aluminum shells come in a range of plating options, including cadmium-free finishes. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors are versatile and reliable. Suitable for military and industrial use, they ensure durable performance with 500 mating cycles.