I really like this OEM one by HP. The downward shape is very comfortable so I want one shaped similarly.
http://www.amazon.com/Button-Optical...824591&sr=8-15
I think around 2,000 dpi or a bit lower is good enough.
http://www.amazon.com/Button-Optical...824591&sr=8-15
I think around 2,000 dpi or a bit lower is good enough.
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