The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they operate flawlessly in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front wall, rear wall, and box mounts, these connectors are versatile and reliable. With a range of shell sizes and insert arrangements, they accommodate different contact configurations, utilizing M39029 rear release crimp contacts. The aluminum shells come in multiple plating options, including cadmium-free finishes, ensuring durability and compliance. Perfect for military and industrial applications, these connectors guarantee secure and efficient electrical connections, with a mating life of 500 cycles.