System x3550, Quad Core Intel Xeon Processor E5345 2.33GHz/1333 MHz (8 MB L2 cache), 2x 1 GB PC2-5300 ECC Chipkill DDR2 FBDIMM, 0GB SAS HD, CD-RW/DVD-ROM Combo, SAS Controller, 2x Gigabit Ethernet, ATI RN50 video (16 MB), 670W\n\n Optimised for speed \nDesigned for applications ranging from Web serving to workload consolidation and virtualization, the IBM System x3550 offers high-speed, dual-core processors with blazing 1333 MHz front-side bus. Optimised for exceptional application computing, the x3550 features a highly functional infrastructure that addresses more memory, lowers power consumption and provides dramatic systems performance increases. \n\n Innovation comes standard \nStandard integrated data protection with hardware RAID and 2.5"" or 3.5"" Serial Attached SCSI (SAS) hard disk drives (HDDs) keeps your data safe and readily available. Super-efficient network communication and hot-swap redundant power help keep your business humming at lower support costs.