zd Plus, 4 pair, receptacle assy Row-to-Row Spacing: 1.5 mm Row-to-Row Spacing: .059 in Mating Alignment: With Mating Alignment Type: Polarization Number of Rows: 8 High Speed Backplane Connector | 1.5 mm .059" With Polarization | Part Number: 2065657-1 | Internal Number: 2065657-1 | TE Connectivity | Z-PACK