Dell E6400 XFR is toughest laptop with touchscreen option. Dell has used Ballistic Armor Protection system to make its product the toughest in Laptops genre. The casing material is used in this laptop is the same used in ballistic missiles. It is a high-tech polymer that is more durable than magnesium alloy material that is used in the most of laptops. Now its time to use your laptop recklessly by having E6400 XFR as it works good in hard conditions claimed by the company Dell.