Tested and working. Comes with power cord. Does not come with operating system. This custom PC is designed for Intel Core 2 Duo e7500 @ 2.93 GHz processor, with 4GB RAM and no HDD. It is perfect for workstation and casual computing, and comes with VGA, HDMI, and USB 2.0 connectivity. The tower form factor and whitebox brand make it a sleek addition to any setup. The unit includes an optical drive and is compatible with a variety of operating systems. It is a great choice for those looking for a reliable and versatile desktop computer.