The 1934317-1 is a 4-pair vertical header assembly connector with left end wall, designed for high-speed backplane interconnections in electronic systems. This connector features a compact form factor with dimensions of 31.50 mm (1.240 inches) in length (Dimension A) and 28.50 mm (1.122 inches) in height (Dimension B), optimized for dense PCB layouts. The connector utilizes standard plated through-hole technology with a finished hole diameter of 1.21 mm (0.048 inches) reference, and employs flat-rock insertion tooling for reliable assembly without custom tooling requirements. The 1934317-1 mates with the 1934225-1 receptacle assembly and is commonly used in backplane and daughterboard applications where high-density signal routing and mechanical stability are essential.