Component identification Front panel components Front panel LEDs and buttons Drives Rear panel components Rear panel LEDs Power supply LEDs Fan bay numbering System board components Drive cage backplane identification Riser components Storage controller components HPE 12G SAS Expander Card port numbering HPE Smart Array P824i-p MR Gen10 Controller HPE InfiniBand HDR/Ethernet 940QSFP 56x16 adapter LEDs DSC-25 2-port SFP28 card ports and LEDs