Mini sas 36 sff-8087 to sff-8482 sas forward breakout, internal mini sas 36 pin sff-8087 sas connector male connect to sas raid controller or motherboard, SAS 4 sff-8482 connectors with sata power connect to hard driver or 4 hdd, each sas sff8482 adapter contain sata 7 pin data and sata 15 pin power adapter, No middle SAS pin, Note: sff-8087 to 4 sff-8482 cable do Not work with SAS Driver, Donot connecter SFF-8087 on your backplane, otherwise the mini sas to sas breakout will not work with them. Mini sas to 4 sas/ sff-8087 host to sff-8482 target, sas 8087 host connect to sas hba or pcie controller, mini sas 36 sff-8087 to 4 sff-8482 connectors with sata power link between the serial SCSI controller and the SATA disks. 8087 breakout cable with power, 8087 male sas connector for expand storage use, sas to sas cable are labled, simple up your cable management game, mini sas sff-8087 sff-8482 data transfer cable easy link serial scsi controller and the sas/sata connector.