MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors are highly durable. Available in various mount types such as front wall, rear wall, and jam nut receptacles, they provide flexibility for different applications. Featuring gold-plated removable crimp contacts, these connectors ensure reliable conductivity. The aluminum shells come in different plating options including electroless nickel and cadmium finishes. With a bayonet coupling design and a mating life of 500 cycles, they offer secure connections for military and industrial use. RoHS compliant options are also available.