Please Note, this is Reversed Cable, 4x7Pin Sata is host ,connect to the motherboard or RAID Controller with SATA ports. Mini SAS 36 (SFF-8087) is the target , connect to the Backplane with MINI-SAS port Before you buy this cable , please make sure the Mini SAS 36 (SFF-8087) on your backplane. If the Mini SAS 36 (SFF-8087) on your motherboard or RAID Controller, this cable will not work with them Mini SAS 36 (SFF-8087) connect to the Backplane, 4 x SATA connect to 4 Controller