when I talked to Sales Rep (not CSR) for that department they said that its the premium package and you can customize your order with more accessories. You can notice this simply by 3 ways. 1. when you hit customize they have 64mb Memory unit, Universal Remote Control, and the Quick Charge kit selected. None of the premium xbox 360 has this. 2. The xbox headset and the Component HD Cable is NOT selected which are inside the premium package. 3. The most important is this Dell Part# : A0561448 comes up on your receipt. And the description states that specific product the xbox 360 comes with 20gb, wireless controller, HD Cable, Headset, etc. So all those is part of the ID #. If you added more accessories you have different part #'s. EDIT: If you look at the Core Xbox 360 console it to has a higher price then normal when you hit customize. I think it preselect what you should buy. But if you unselect all the accessories you have a price of $300 exactly what it cost in the store. Also you have 2 selection Core Xbox 360 or Pro Xbox 360. They just renamed the Premium to Pro.