Special Order: HSR Daughter conn. 4 bay (3 HMZd, 1UPM) Mating Alignment: With Mating Alignment Type: Polarization PCB Connector Assembly Type: PCB Mount Header Backplane Architecture: Traditional Backplane PCB Mount Orientation: Right Angle With Polarization PCB Mount Header Traditional Backplane | High Speed Connector | Part Number: 2000667-3 | Internal Number: 2000667-3 | TE Connectivity