Available in Wired and Wireless Models, the Ergonomist-Approved 60-Degree Vertical Trackball Mice Feature 4D Scrolling, Adjustable DPI, and Programmable Controls for Professional Workflows Whether ...
The Ploopy Adept Trackball is an input device that looks a bit like a Kenginston Expert trackball, but it has more buttons, a smaller trackball, a 3D-printed case, and a completely open source design.
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