MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, ideal for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure secure installations. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for diverse applications. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, they provide reliable performance. The high-strength aluminum shells come in multiple plating options, such as electroless nickel and cadmium finishes. RoHS compliant choices are available, meeting environmental standards. Overall, these connectors, part of the MIL-DTL-38999 I series, guarantee durability and functionality in demanding settings.