On this pageThinkSystem SR645 4x3.5" SAS/SATA Backplane Cable Kit PN4X97A59766 ThinkSystem SR645 4 x 3.5" SAS/SATA Backplane cable kit | Lenovo Server OptionsThe option package contains the following items.Learn More ThinkSystemSR645 OS Support MatrixOS IndependentOS IndependentGive feedback