Wacom Cintiq 21UX DTK-2100 21-inch Pen Display - Graphics Monitor with Digital Pen Custom radial menus for rapid navigation Touch Strips, with Touch Strip Toggle buttons, control up to 4 application-specific functions New pen tip sensor technology lowers activation force and captures every nuance of pen pressure control 2048 levels of pen pressure sensitivity for precise pen pressure control 16 User-defined ExpressKeys&#8482; put time saving shortcuts, modifiers, scrolling, zooming, and more at your fingertips. 2048 levels of pen pressure sensitivity for precise pen pressure control New pen tip sensor technology lowers activation force and captures every nuance of pen pressure control 16 User-defined ExpressKeys&#8482; put time saving shortcuts, modifiers, scrolling, zooming, and more at your fingertips. Touch Strips, with Touch Strip Toggle buttons, control up to 4 application-specific functions Custom radial menus for rapid navigation