The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for reliable electrical connections. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for various applications. Available in different mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors utilize M39029 rear release crimp contacts, ensuring secure and efficient connections. Constructed with aluminum shells and offered in various plating options, including RoHS certified finishes, they provide durability and compliance with environmental standards. Suitable for military and industrial use, these connectors meet MIL-DTL-38999 II specifications, guaranteeing high performance in demanding conditions.