MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front and rear wall mount receptacles, as well as jam nut options, ensuring secure installations. With a wide operating temperature range from -65 °C to 200 °C, these connectors are versatile and reliable. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, they accommodate diverse needs. The high-strength aluminum shells come in multiple plating options, such as cadmium and nickel, meeting stringent specifications for RoHS compliance. Perfect for military and industrial applications, these connectors provide durable and efficient electrical connections in challenging conditions.