Visit our store HP Z400 Professional Workstation:Intel Xeon (W3505) Dual Core 2.53GHz CPU / 3GB DDR3 RAM/ 80GB SATA HDD nVidia QuadroFX 1500 Video Card / Windows 7 Pro 64-bit Included: Included: OS: Windows 7 Pro 64-bitHP Z400 Workstation CaseZ400 Workstation Motherboard Intel Dual Core Xeon Processor at 2.53GHz (W3505) 80GB SATA Hard DrivenVidia Quadro FX 1500 Video Card with Dual DVI Connectors 475 Watt Power Supply DVD-ROM Drive3GB DDR3 RAMHeat Sink/Fan assemblyPower Cord Condition: Refurbished, case may have few scratches Warranty: 30 Days Motherboard: Socket/Processors: LGA 1366/W3000 Xeon Series Processors Chipset: Intel X58 Chipset Memory: 4 DIMM slots, up to 16GB DDR3 Networking: Dual Integrated Broadcom 5755 NetXtreme Gigabit Slots: 2 PCI Express Gen2 x16 mechanical/electrical, 1 PCI Express Gen2 x8 mechanical/x4 electrical, 1 PCI Express Gen1 x8 mechanical/x4 electrical, 2 PCI Audio: High Definition Integrated Realtek ALC262 Audio I/O Ports: Front: 2 USB 2.0, 1 IEEE 1394a standard, or IEEE 1394b optional via add-in card; 1 microphone in, 1 headphone outRear: 6 USB 2.0, 2 optional IEEE 1394a or IEEE 1394b ports via add-in PCI card;1 audio in, 1 audio out, 1 microphone in, 2 PS/2, 1 RJ-45 to integrated GigabitLANWe Reserve The Right To Cancel Your buy (for buyders with "0" and negative feedbacks)Work smarter•Run more tasks, processes, and applications simultaneously with a workstation that brings together and optimizes the latest processors, memory, graphics, and storage technologies.Updated design•With a smart new chassis, quiet acoustics, and optional liquid cooling that makes the system even quieter at heavy loads, the HP Z400 showcases HP innovation—inside and out.Designed with the environment in mind•Minimize power and cooling costs with ENERGY STAR® qualified configurations, 85% efficient power supplies, and HP WattSaver, an HP-developed energy-saving feature that, when activated, helps lower energy consumption in off mode.Do more every minute•Take on bigger challenges with the new Intel® QuickPath Technology and your choice of the latest dual- or quad-core Intel® Xeon® processors.*Latest graphics•Drive four 3D or six 2D displays with the newest professional graphics options from NVIDIA and ATI.Simple to service•The tool-less chassis and uncluttered internal design simplify access and service for adding or changing components quickly.<div style="text-align:center"><a style="text-decoration:none" href="http://mostpopular.sellathon.com/?id=AC312784"><img src="http://www.sellathon.com/Resources/Images/countercredit.gif" border="0"></a></div> SquareTrade © squaretrade warranty v2.0