If you take some time and read around their site you'll see that they're offering a ready to run (turnkey) server. They have everything packed together, they've integrated everything that is needed (CPU, disk, networking...) into a nice looking cabinet, with not too many wires and they're selling it as a complete package.
If you're in need of a server (cloud computer) and you don't want to but separate components and unpack them and connect them yourself, then this looks like a possible solution.
