MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts housed in an insert. These connectors are environmentally sealed, operating reliably in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Featuring aluminum shells with a choice of plated finishes, such as cadmium and nickel, they ensure durability and reliability. With M39029 rear release crimp contacts in multiple sizes, these connectors provide secure connections. Suitable for military and industrial applications, they adhere to stringent MIL-DTL-38999 II specifications, offering high performance and longevity in demanding settings.