A card edge connector (100) for mounted on a PCB (200) includes a longitudinal insulative housing (1) and a plurality of contacts (2, 6) arranged two arrays opposite to each other in the width direction. Each of the contacts has a retaining portion (24, 64), a contacting portion extending from the retaining portion and a soldering tail (66) extending outwards for being soldered to the PCB (200). The retaining portion (24, 64) of each array contact are coplanar to each other and disposed at a vertical plane in the longitudinal direction, while the soldering tails (26, 66) of each array contact are arranged at least three tail lines (L1, L2, L3).