MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert and offering reliable performance in temperatures ranging from -65 °C to 200 °C. These connectors come in various configurations, including front and rear wall mounts, jam nuts, and box mounts, with options for straight, RFI grounding, and standard plugs. Compliant with military specification MIL-DTL-38999 II, they utilize M39029 rear release crimp contacts and are available in aluminum shells with multiple plating options. With RoHS-certified finishes, these connectors ensure durability and conductivity, making them ideal for demanding applications requiring secure electrical connections.