1934318-1 is a 4 Pair Vertical Header Assembly with right end wall, part of the Z-PACK TinMan high speed, high density backplane connector family. This 16-column header features dimension A of 32.20 mm (1.268 in) and dimension B of 28.50 mm (1.122 in), designed for vertical mounting configurations. The connector utilizes application tooling 1-1804790-3 and mates with receptacle assembly 1934225-1. Ideal for high-speed backplane applications, this header assembly supports reliable signal transmission in telecommunications, networking, and computing equipment where high-density interconnect solutions are required.