The Microsoft Optical Mouse 200 for Business (Black) is designed to meet your computing needs. This device requires no software to install. It is easy to set up and use. Its Scroll wheel and Microsoft Optical Technology let you move quickly and accurately through business documents. Its high-performance 1000dpi optical sensor delivers greater accuracy and control. This device comes in ambidextrous design and can be used with either hand. It is compatible with Windows Vista Windows 7 and Windows XP.