This cable is a Mini SAS 36pin SFF-8087 to 4 x SFF-8482 cable, and the SFF-8482 side is with 4x Molex 4pin power connectors.It allows you connect from a SAS controller with SFF-8087 internal mini SAS connector to 4 SAS hard drives.Compatible Products:Adaptec RAID 5405Adaptec RAID 5805Adaptec RAID 2405Adaptec RAID 51245Adaptec RAID 51645Adaptec RAID 52445Adaptec RAID 5405ZAdaptec RAID 5445Adaptec RAID 5445ZAdaptec RAID 5805ZAdaptec RAID 31205Adaptec RAID 31605Adaptec RAID 3405Adaptec RAID 3805Adaptec RAID 1405