Microsoft Trackball Optical
© 2000 Microsoft Corp.
This is a USB trackball controller with ball located in the thumb position. Otherwise, it is identical to Microsoft Trackball Explorer. The device itself has an ergonomically appealing design, although sometimes the buttons are too easily accidentally pressed. The ball rolls very smoothly, as does the cursor on screen. Although we have no major complaints about this product, its usefulness eludes us. Unless you're accustomed to a trackball already, it will take some time to learn to move it fluidly.
$44.95, Win
Teaches: (a peripheral)