An SAS connector which includes a male assembly, a female assembly and a PCB, the male assembly includes a male housing and several male signal terminals, the female assembly includes a female housing and several female signal terminals; the male assembly mates with the female assembly, with the PCB being clamped between the male assembly and the female assembly; wherein the male signal terminals are inserted in the male housing, and include in particular male symmetrical terminals, male right-biased terminals and male left-biased terminals, as well as female signal terminals that are inserted in the female housing, and include in particular female symmetrical terminals, female right-biased terminals and female left-biased terminals.