Though I've been using computers since 1965, my understanding of modern technicalities is woefully lacking. I would have appreciated a sketch of the whole of the back panel with a simple indication of what goes in. For most of your users I appreciate this isn't necessary though. But for instance, what's the difference between what usbs go in the different coloured slots. Otherwise, love it, fast and plenty of space. I received plenty of updates about its arrival. It was solidly packaged. Delivery occurred when it was supposed to, and done by a helpful delivery guy.