The 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 provide reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they offer versatility for different applications. The high strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. These connectors, with front and rear wall mount options and RFI grounding plugs, ensure secure and reliable connections in military and industrial settings.