Powerful budget computing!With this IBM ThinkCentre M51, you get proven Pentium 4 processing with intelligent IBM design! With an Intel Pentium 4 3.0 GHz and 512 MB of DDR RAM, this system has the power to to tackle nearly any home or office task! With a 40 GB SATA hard drive and Microsoft Windows XP Professional pre-installed, you get a familiar OS with plenty of room for installing your favorite applications!Listen to music and install software with the CD-ROM drive. Connect to high-speed networks with the integrated Gigabit Ethernet LAN! Integrated video and audio chipsets provide cost savings and big performance! Expand your system with PCI-Express expansion cards! Order your IBM ThinkCentre M51 now!