HP Z800 Workstation (Intel QUAD CORE Xeon 3.33GHz Processor, 1TB SSD, 4Tb HDD, 48GB RAM, USB 3.0, Windows 10 Pro OS) Black (Certified Refurbished) This Certified Refurbished product is tested and certified by the manufacturer or by a third-party refurbisher to look and work like new,with limited to no signs of wear.The refurbishing process includes functionality testing,inspection,reconditioning and repackaging.The product ships with all relevant accessories,a minimum 90-day warranty,and may arrive in a generic white or brown box.Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon. 1 Year Warranty and Technical support on Computer. *NEW* 1TB SSD with 5 Year Warranty from Manufacturer + *NEW* 4TB Hard Drive with 3 Year Warranty from Manufacturer. Video Cards as of 4/24/18 Upgraded to - Nvidia Quadro NVS 512MB DDR3 4K, 2 Monitor Support, DirectX 11 and OpenGL 4.1, OpenCL 1.1, Full Shader Model 5.0 Support; Power Supply- 850 Watt; USB 3.0 - 4 Ports. 3 Available ports from video card (DVI-D, 2 Display Ports Max HD Resolution: 2560x1600 @ 60Hz Hp Workstation and Graphics card are Approved and Exceed Performance for Solidworks, CAD, AutoCad, Revit Certified. 850 Watt Power Supply- USB 3.0 - 4 Ports; HP Z800 Workstation (Intel QUAD CORE Xeon 3.33GHz Processor, 1TB SSD, 4Tb HDD, 48GB RAM, USB 3.0