1934342-1 is a 3 Pair Vertical Header Assembly with Double End Walls, part of the Z-PACK TinMan high-speed, high-density backplane connector family. This 10-column connector features dimensions of 21.75 mm (0.856 in) for dimension A and 17.10 mm (0.673 in) for dimension B, with a 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, and mates with receptacle assembly 1934228-1. It features reliable, redundant contact design on every signal contact with sequencing for ground and signal contacts. This RoHS compliant connector is ideal for high-speed backplane applications in telecommunications and data communications equipment requiring high signal integrity and density.