Tested works great.  Dual intel x5680, 96gb RAM, 500gb HD, comes with all of the important parts + keys the original z800 came with.  Please see photos for condition.  dir="ltr" style="margin-top:0; margin-bottom:0;">The HP Z800 Xeon 2x X5680 3.33GHz desktop is a high-performance workstation designed for a range of tasks including office work, casual computing, graphic design, and more. Powered by dual Intel Xeon processors and equipped with 96 GB of RAM, this tower also features a NVIDIA Quadro K4000 dedicated graphics card for seamless graphics processing. With a combination of hard drive and SSD storage options, this workstation offers ample storage capacity for large files and applications. Ideal for professionals in need of a powerful and reliable desktop solution, the HP Z800 also boasts Windows 10 Pro for enhanced functionality and connectivity options.