5179030-6 is a fine-pitch SMT stacking connector plug designed for parallel board-to-board applications. This connector is configured for 140 positions and features dimensions of 55.20 mm (2.173 inches) in length (A), 61.80 mm (2.433 inches) in width (B), and 60.20 mm (2.370 inches) in height (C). The connector is available with two plating options: 8 microinches gold or 30 microinches gold, providing flexibility for different reliability and cost requirements. This product is commonly used in high-density interconnect applications where space constraints and signal integrity are critical, such as in telecommunications, computing, and industrial control systems.