Product: TrackBall Optical
Company: Microsoft.com
Website: http://www.microsoft.com/hardware
Estimated Street Price: $44.95
Review By: Julien JAY

Enhanced Microsoft IntelliEye Technology

You may wonder what makes this new trackball so special. Well, to still stay ahead of the competition Microsoft enhanced its innovative IntelliEye technology to make our lives just a tad bit easier by including an optical captor instead of the traditional mechanical parts used in a TrackBall. The benefits are double - first the accuracy of the TrackBall is impressive, but the best thing is that the TrackBall won’t get dirty - so you won’t have to clean it or to change it when the rolling parts will be out of order. Such technology was already known, but until know only infrared sensors were used that made TrackBall less precise.

18 million instructions per second (MIPS) and results in smooth, precise pointer movement.

Features and Functions with IntelliEye Optical Tracking Technology

• Increased precision and better control: Moving parts can break or wear out with use. IntelliEye replaces the moving parts inside the trackball with a tiny optical sensor that will analyse the nice ball movements so you won’t need to move the device: it's a stationary pointing device. The completely digital design of Microsoft IntelliEye means the trackball will remain as responsive and accurate as it was the day it was purchased. 
•  No more cleaning: Traditional trackball feature moving parts that are susceptible to the accumulation of dirt, dust or grime, which cause pointers to stick or move erratically. With IntelliEye technology, there is no parts to clean and eventually break.