Best Microsoft Trackball Explorer - Trackball - optical - 5 button(s) - wired - PS/2, USB - retail

Microsoft Trackball Explorer - Trackball - optical - 5 button(s) - wired - PS/2, USB - retail

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• Revolutionary Ergonomic Design
• Features Instant Viewer
• Has 4-Way Scrolling
• Point and click to enlarge and edit details using the Magnifier
• Five Customizable Buttons

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