MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount, as well as jam nut receptacles, accommodating various installation needs. With a wide operating temperature range from -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Utilizing M39029 rear release crimp contacts in multiple sizes, including coax and twinax, these connectors provide versatile connectivity options. Constructed with high-strength aluminum shells, they come in various plating options, such as electroless nickel and cadmium finishes, meeting diverse application requirements. These RoHS compliant connectors are ideal for military and industrial applications, offering durability and conductivity in demanding environments.