I purchased two of these PCs at a great price but they were both shipped to me with the wrong power cords. If you look closely at the photo you'll notice the electrical cable doesn't even fit into the power adaptor that they sent with the computer (which is the wrong adaptor). The HP Elite 8300 Ultra Small Slim Computer requires a specific power adaptor for them to power on. Luckily, I am familiar with this model because I maintained them in my previous job. I purchased the correct power adaptors and the PCs powered on and they perform as well as new devices.