133 0331 - LOGITECH TRACKMAN MARBLE, USB OR PS/2

ProductID 34918 - is no longer available at Cyberguys.com

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This advanced trackball from the input experts at Logitech was designed for comfort in either hand. Its optical tracking system delivers superior precision and smooth motion, yet requires virtually no maintenance or cleaning. Includes PS/2 adapter and software CD-ROM. Requires Microsoft Windows XP+ or Mac OS 10.3.9+.