Affordable home or office computing!This IBM ThinkCentre S50 is powered by an Intel Pentium 4 processor at 2.8 GHz with Hyper-Threading technology and 512 MB of RAM. An 80 GB hard drive is included for installing applications or storing critical data. The hard drive has Microsoft Windows XP Professional pre-installed w/CoA.Access all types of optical media with the CDRW/DVD-ROM drive. Two PCI expansion slots, integrated audio and Ethernet are included with this IBM Thinkcentre S50 desktop. Add your own keyboard, mouse, and monitor and you're ready for fast and efficient computing! Order now!