MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations such as front/rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. These connectors, compliant with military specification MIL-DTL-38999 II, utilize M39029 rear release crimp contacts and come in aluminum shells with options for plating finishes including gold, electroless nickel, and anodized aluminum. With a focus on durability and performance, they are ideal for use in demanding environments requiring reliable electrical connections.