HP recommends Windows VistaHP recommends Windows VistaHP recommends Windows VistaHP recommends Windows Vista®®®®BusinessBusinessBusinessBusiness1.1.1.1. Monitor (sold separately)2.2.2.2. Mouse3.3.3.3. Keyboard4.4.4.4. Front IO: 2 USB 2.0, IEEE-1394 (requires optional PCI cardto enable), headphone and microphone5.5.5.5. One 3.5" external bay for optional diskette drive or other 3.5"device6.6.6.6. Three 5.25" external bays (3rd external is not full depth), andtwo 3.5" internal bays7.7.7.7. 3 PCI slots, 1 PCI Express x1 slot, 1 PCI Express x8 slot (withx4 functionality), 2 PCI Express x16 slots (one exclusive forgraphics)8.8.8.8. Rear IO: 7 USB 2.0, 1 standard serial port, 1 optional serialport, 1 parallel port, PS/2 keyboard, PS/2 mouse, RJ-45,External SATA, audio line in, audio line out, and microphonein.9.9.9.9. 3 USB 2.0 internal port (1 type A receptacle, 2 headers)10.10.10.10.R475 watt (continuous) 80 PLUS efficient power supply.11.11.11.11.Intel® Core™ 2 Duo, Core 2 Quad, Core 2 Extremeprocessor or Intel Pentium® Dual Core processor; allprocessors are EM64T capableQuickSpecs HP xw4600 WorkstationHP xw4600 WorkstationHP xw4600 WorkstationHP xw4600 WorkstationOverviewDA - 12792 Worldwide — Version 1 — October 1, 2007 Page 1