The PowerVault ME4012 is a 2U storage array with a backplane for up to twelve (12) 3.5" LFF hard drives & controller options for iSCSI, Fibre Channel or SAS.
The PowerVault ME4024 is a 2U storage array with a backplane for up to twenty-four (24) 2.5″ sFF hard drives & controller options for 10 Gigabit iSCSI Ethernet, 8/16Gb Fibre Channel or 12Gb direct-attached SAS.