21FeaturesHere are just a few of your computer's many features:Performance• Intel® Celeron® supporting front side bus (FSB) up to 533 MHz,Intel® Celeron® D supporting FSB up to 533 MHz,Intel® Pentium® 4 supporting FSB up to 533/800 MHz, orIntel® Pentium® D supporting FSB up to 800/1066 MHz• Intel® Q965 Express chipset• DDR2 667/800, 4 DIMM slots, expandable to 4 GB dual-channel memory• Power management function• CD-ROM, CD-RW, DVD-ROM, DVD/CD-RW combo, DVD-Dual or DVD-Supermulti drive• High-capacity, Enhanced-IDE hard diskMultimedia• High-definition audio• Supporting up to 7.1 surround sound, audio CODEC support for 44.1k/48k/96k/192kHz quality, multiple streams.• 3D quality audio system via onboard audio controller• Audio-in/line-in, audio-out/line-out, headphone-out and microphone-ininterfacesConnectivity• Two PS/2 interfaces for mouse and keyboard• One serial port (optional 2nd serial port connection)• One parallel port• One VGA port• Eight Universal Serial Bus (USB) 2.0 ports (four on the front; four on therear panel)• High-speed V.92, 56K fax/modem (manufacturing option)• Gigabit Ethernet LAN support with remote wake-up function