Intel 845G chipset with 266 MHz Double Data Rate (DDR) memory 256MB installed(2slots one open)Intel Pentium 4 2.53GHz 512K cache 533MHz FSB4slotx4bay Desktop 3xFull lenght PCI, one full AGPUp to 2GB of DDR system memory support AGP 4X ATI Radeon 700064MB 16X DVDIntegrated 10/100 ethernetUltra ATA 100 40GB 7200RPMWindows XP Pro