Microsoft Basic Optical Mouse with Software, USB Port -Black P5800022

• Now you can experience the benefits of the world's most powerful optical technology. The Microsoft optical sensor replaces your old-fashioned mouse ball. Capturing 6,000 frames per second, it delivers up to four times the performance of other optical mice. This superior tracking speed translates into smooth, accurate cursor performance and it works on most surfaces. No mouse pad!Simply roll the wheel to move around in documents and Web pages - no more clicking the on-screen scroll bar repeatedly! Accelerated scrolling reacts to how quickly you roll the wheel, allowing faster movement when you want it. Scrolling speed increases of average of 28 percent (on three or more pages).Comfortably shaped for the right or left hand. The rectangular Universal Serial Bus (USB) plug connects to a Windows- or Macintosh-based computer. The included IntelliMouse software comes in a Windows or MacOS version (supported on MacOS 8.6 to 9.x and MacOS 10.1).