MIL-DTL-38999 Series II connectors, meeting stringent military specifications, boast up to 128 contacts in a durable insert, offering reliable connectivity in harsh environments. With front and rear wall mount options, as well as various receptacle styles, including jam nut and box mount, these connectors provide versatile installation solutions. Featuring thin walls and restricted lengths, they ensure efficient use of space. Available in 9 shell sizes and 52 insert arrangements, with gold-plated removable crimp contacts, they guarantee high performance. Constructed from aluminum with plating options like electroless nickel and cadmium olive drab, they prioritize durability and environmental resilience. RoHS compliant finishes are also available. Operating efficiently in temperatures ranging from -65 °C to 175 °C, these connectors are ideal for demanding applications, offering reliable conductivity and ingress protection. With a service rating of I and a mating life of 500 cycles, they are suitable for various military and industrial settings.