The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert and durable aluminum shells. With a wide operating temperature range of -65 °C to 200 °C, they provide reliable performance in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. Meeting military specification standards, they are ideal for demanding applications that require secure and high-speed connectivity. The RoHS compliant options ensure environmental responsibility, with finishes such as electroless nickel and cadmium olive drab providing corrosion resistance. With removable crimp contacts and a bayonet coupling design, these connectors offer ease of assembly and maintenance. Suitable for use in aerospace, defense, and industrial settings, they guarantee robust and efficient electrical connections.