Huion 8" X 5" Professional Art Graphics Drawing Tablet 10" Windows 7 Mac OS Portable USB 580 White System Requirement: For Windows 8/Windows 7/Vista/XP/2000, For Mac OS X10.4 and above Allows handwriting, annotations with the Tablet Pen on Microsoft Word To simulate traditional digital pens, the Huion 580 features 2048 levels of pen pressure sensitivity It is easy to install, compatible with windows, Macs, and all major graphic applications as well offcial authorized store