The MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts in an insert. Designed for durability, these connectors are environmentally sealed and can withstand temperatures ranging from -65 °C to 200 °C. Available in various configurations including front and rear wall mount, as well as jam nut receptacles, they ensure secure and reliable connections. With 52 insert arrangements and M39029 rear release crimp contacts, they offer versatility for different applications. Constructed with high-strength aluminum shells and offering a range of plating options, including cadmium-free finishes, these connectors are RoHS compliant. Suitable for military and industrial use, they provide superior conductivity and durability, meeting the stringent requirements of MIL-DTL-38999 I specifications.