2UrackmountchassissupportsATX/EATXmotherboard12-bayhot-swappable3.5"/2.5"SAS12Gb/sdrivesorSATA6Gb/sdrives4xNVMedrivessupportedviaanoptionalrisercardDefault7xslots(lowprofile)rearpanel,3xslots(fullheight)optionalSupportsFlexATXPower,80+singleorredundantpowersupply)