Vert.Male, Telcordia L2 Row-to-Row Spacing: 1.25 mm Row-to-Row Spacing: .05 in Mating Alignment: With Mating Alignment Type: Polarization Number of Rows: 8 High Speed Backplane Connector | 1.25 mm .05" With Polarization | Part Number: 2042088-1 | Internal Number: 2042088-1 | TE Connectivity | Z-PACK