The MIL-DTL-38999 Series I connectors offer a reliable solution for harsh environment applications, featuring up to 128 contacts in an insert. Designed for durability, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come in different plating options, including cadmium-free finishes, ensuring longevity and performance. With a Bayonet coupling and straight plug configuration, these connectors are ideal for military and industrial use, providing a conductive and environment-resistant solution.