Here are the specs:
B&W PowerMac expanded to G4/550 MHz (using Powerlogix G4 ZIF module)
Motherboard revision 2
128 MB PC100 RAM (expandable up to 1 GB)
ATI 3D Rage 128 16 MB Video Card (supports standard SVGA monitors) with
add-on DVD Decoder
6.4 GB IDE Hard Drive
5X IDE DVD-ROM Drive
100 MB ZIP Drive
56K Modem
4 standard PCI slots (one occupied by video card)
Built-in 2 USB ports, 2 FireWire ports, 10/100BaseT Ethernet port, ADB
port for older Mac peripherals
Comes with Macally iKey keyboard and Kensington Trackball (Turbo Mouse)
If you are interested, please go to (click on):
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5100626664