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About This Product ThinkSystem ST50 V2 Internal Drive Cable Kit Key Features . 1xSAS-to-4xSATA data cable connects RAID/HBA to 3x SATA drives (SBB7A09984)520mm SATA cable for drive bay 3 (SBB7A46040)Power cable for drive bay 3 and the optical drive (SBB7A46041)Power cable for drive bays 1 and 2 (SBB7A46039)Tip All HDD and SSD drive options include the 185mm SATA cable for use with drive bay 1 or bay 2. The 520mm SATA cable is needed for use with drive bay 3Cables used in two scenarios When adding drives to a server with drive bays (cages) but without any drives installed. When upgrading from onboard SATA to an HBA or RAID adapter.