Poweredge R420 Series : D-sv-r420e52407-14 Pe R420 (up To 4x 3.5 Or 2.5 Hot Plug Hdds) / Intel Xeon E5-2407 Processor (2.20ghz, 4c, 10m Cache, 6.4 Gt/s Qpi, 80w Tdp, No Turbo), Ddr3-1066mhz / 4gb Memory (1x4gb Dual Rank Lv Rdimm) 1333mhz / No Hard Disks / Perc H710 Integrated Raid Controller, 512mb Nv Cache / Dvd+/-rw, Sata, Internal For 4hdd Chassis / Dual Hot Plug Power Supplies 550w / 3yrs Basic Warranty - Nbd (emerging Only)