The MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options and are available in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections. With a wide range of plating options, including RoHS certified finishes, these connectors are suitable for diverse applications. The straight plug configuration, with gold-plated contacts, guarantees optimal conductivity and durability, with a maximum operating temperature of 175°C and a minimum of -65°C. Made of aluminum, they are rugged and reliable, meeting stringent military specifications for performance and durability in demanding environments.