Table 3 summarizes the specifications for each of the PowerEdge R420 features. For the latestinformation on supported features for the PowerEdge R420, visit Dell.com.Feature PowerEdge R420 technical specificationForm factor 1U rackProcessors Intel Xeon processor E5-2400 product familyProcessor sockets 2Internal interconnect Intel QuickPath Interconnect (QPI) link: 6.4 GT/s, 7.2 GT/s, 8.0 GT/sCache 2.5MB per core with core options of 4, 6, or 8Chipset Intel C600Memory1 Up to 192GB (12 DIMM slots): 2GB/4GB/8GB/16GB DDR3 up to 1600 MT/sPCIe slots2 PCIe slotsWith 2 processors: 1 x16 slot with x16 bandwidth, 3.0, half-height, half-length 1 x16 slot with x16 bandwidth, 3.0, full-height, half-lengthWith 1 processor: 1 x8 slot with x4 bandwidth, 2.0, half-height, half-length 1 x16 slot with x16 bandwidth, 3.0, full-height, half-lengthRAID controllerInternal controllers:PERC S110 (SW RAID)PERC H310PERC H710PERC H710PExternal HBAs (RAID):PERC H810External HBAs (non-RAID):6Gbps SAS HBAHard drivesDrive bay options:4 x 3.5” cabled drive bays or4 x 3.5” hot-plug drive bays (2.5” hybrid kit available) or8 x 2.5” hot- plug drive baysHot-plug hard drive options:2.5” SATA, nearline SAS, SAS (15K, 10K), SAS SSD, SATA SSD3.5” SATA, nearline SAS, SAS (15K)Self-encrypting drives availableCabled hard drive options:3.5” SATA, nearline SAS, SAS (15K)Embedded NIC Broadcom® 5720 GbE Dual PortPower supplyPlatinum efficiency 550W and 350W power suppliesSilver efficiency cabled 550W power supplyAuto-ranging power supplies