*Please note that this Mini SAS (SFF-8643) to 4x SATA Cable, SFF-8643 is host, connect to the motherboard or RAID Controller with Mini SAS ports. 4x7Pin SATA is the target, connect to the hard drives with SATA port *Before you buy this cable, please make sure the Mini SAS (SFF-8643) on your motherboard or RAID Controller. If the Mini SAS (SFF-8643) on your backplane, this cable will not work with them *SFF-8643: the new connector uses less PCB real estate and allows higher port density for in