The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are environmentally sealed for reliability. Available in various receptacle styles such as front and rear wall mount, jam nut, and box mount, they offer versatility for different applications. Made of aluminum, they come in different plating options including cadmium and nickel, meeting RoHS compliance standards. With removable crimp contacts, these connectors provide secure and efficient electrical connections, ideal for military and industrial use.