1934345-1 is a 3 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), with 100 ohm impedance for differential pair configuration supporting 10+ Gbps performance. The connector offers 16 pairs/10mm (40 differential pairs/inch) fitting within a 16.25 mm (0.625 in) card slot pitch, with reliable redundant contact design on every signal contact and sequencing for ground and signal contacts. It mates with receptacle assembly 1934229-1 and uses application tooling 1-1901457-3. This RoHS compliant connector is ideal for high-speed backplane applications requiring high signal density and meets Bellcore/Telcordia industry reliability requirements.