1934344-1 is a 3-pair vertical header assembly connector designed for the Z-PACK TinMan high-speed, high-density backplane connector family. This left end wall configuration supports 10+ Gbps performance with 100 ohm impedance for differential pair configuration, delivering 16 pairs per 10mm (40 differential pairs/inch) fitting within a 16.25mm (0.625 inch) card slot pitch. The connector features a reliable, redundant contact design on every signal contact with right angle pin headers in a 16-column version, and includes sequencing for ground and signal contacts. The assembly mates with 1934229-1 receptacle and utilizes application tooling 1-1901457-3, making it ideal for high-speed backplane interconnections in telecommunications and data center equipment requiring cost-effective, modular connectivity solutions.