This is a one of one, it is demo media server with every type of input and output dvd burner and touch screen. There is no tower that is the whole thing built in speakers 500gig hard drive. It was built in the UK for a all in one security server screen and can control 18 cameras. The original cost was well over 6000$ but was a demo Im a manufacturers rep for cannon security cameras. They built 5 total ever and it's the last one. Has lighting fast cpu and a ton of space. It can be used as many different kinds of things it can hook up to multiple tvs and 18 camera 's has every type of connection on a computer that I have ever seen. I'm not sure what to even ask but if you want a crazy custom built touch screen computer that no one else has this is it