Processor, operating system and memory Processor Intel® Xeon® Quad Core processor X3430 (2.40GHz, 95W, 8MB, 1333MHz) Number of processors 1 Processor upgrade 1 Standard memory 2 GB (2 x 1GB) PC3-10600 1333Mhz ECC DDR3 Memory slots 2/6 (Max 32GB) Internal drives Internal drives -- Storage controller ServeRaid BR10il (support RAID 0, 1) Internal drive bays support SAS/SATA HDD 3.5 inch (Max 4 bays) Optical drives DVD-ROM System features Form factor Tower(5U) Chipset -- Network interface Dual Gigabit Ethernet 10/100/1000 External I/O ports 7 USB (2 front/4 rear/1 internal), 2 Ethernet, 1 serial and video Expansion slots Two PCIe x8 Gen2, one PCIe x4, two PCI (32-bit/33 MHz), one dedicated PCIe x4 for RAID-0, -1 controller Power supply type 401W Fixed Power 1/1 Compatible operating systems Microsoft® Windows Server 2008 STD, EE, R2/Microsoft Windows Server 2008 x64 STD, EE, DC/Windows® Small Business Server 2008, Red Hat Linux®, SUSE Linux Product weight --