The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and more, they offer flexibility in installation. Made with aluminum shells and offering multiple plating options including cadmium-free finishes, they ensure durability and reliability. Certified to military specification MIL-DTL-38999 II, these circular plugs are suitable for use in aerospace, defense, and other rugged environments.