System bus:800mhz front side bus Cache memory:2mb level 2 Graphics: Intel graphics media accelerator 950 Audio: Integrated audio Speakers: Amplified stereo with 7.1 high-definition audio speaker jacks, microphone in, line in and speaker headphone out Modem:56k itu v.92 fax/modem Network interface:10/100mbps ethernet Total expansion bays: (4) 3.5 bays and (2) 5.25 bays Available expansion bays: (2) 3.5 bays Total expansion slots:1 pci express x16,1 pci express x1 and 3 pci Available expansion slots:1 pci express x16,1 pci express x1 and 2 pci Ports:7 usb 2.0 (3 front,4 back),1 vga,2 ieee 1394 firewire,1 parallel,1 serial and 2 ps/2 Keyboard: Wireless Mouse: Wireless Dimensions: Tower: Approx.15.4h x 7.3w x 17.9 deep; monitor: Approx.15.4h x 19.5w x 8.2 deep