2MM FB,ASY,024,SIG,REC,EN,3.55 Connector System: Board-to-Board Number of Positions: 24 Row-to-Row Spacing: 2 mm Number of Rows: 4 Number of Columns: 6 Board-to-Board 24 2 mm | Backplane Connector Housing | Part Number: 5536511-1 | Internal Number: 5536511-1 | TE Connectivity