Option PRAID EP420i S26361-F5243-L12 Component selection Hardware SCSI/RAID/SAS controller RAID Controller Description - SAS/SATA RAID Controller based on LSI MegaRAID SAS3108 - for internal SAS/SATA HDD and SSD - RAID Levels 0, 1, 10, 5, 50, 6, 60 - 2GB Cache -a later change from SAS2.0 controller or onboard controller to SAS3.0 or the other way round can require different SAS cable, (see system paper configurator, system manual or ask PRIMERGY-PM). Orders ex factory always come with the right cable.