The ASUS ZenBook Pro Duo UX481 and UX581 have a second full-width 4K display with touch functionality in the form of the ScreenPad Plus, which connects directly to the keyboard area. It works seamlessly with the main screen, for instance enabling the user to move apps from the main screen to the ScreenPad. The chassis is designed in line with Zen philosophy and combines aesthetics, aerodynamics and human factors with an angular, compact form.