MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts, meeting stringent environmental sealing requirements for a wide operating temperature range of -65 °C to 200 °C. Featuring front and rear wall mount options, as well as jam nut receptacles, this connector family ensures versatile installation in harsh environments. With 52 insert arrangements and M39029 rear release crimp contacts in various sizes, including coax and twinax, these connectors cater to diverse application needs. Constructed with high strength aluminum shells and available in multiple plating options like cadmium and nickel, they guarantee reliable performance in demanding conditions. RoHS compliant finishes are also offered, making them environmentally conscious choices.