Special Order: STM051L2IQ = SMT CONN PCB Connector Assembly Type: PCB Mount Receptacle PCB Mount Orientation: Horizontal Connector System: Wire-to-Board Number of Positions: 51 Number of Rows: 2 PCB Mount Receptacle Horizontal Wire-to-Board 51 | PCB Header & Receptacle | Part Number: STM051L2IQ | Internal Number: 7-1589483-9 | TE Connectivity