TrackballsKensington Expert Mouse Wired Trackball K64325
A wired USB symmetrical trackball with a 55 mm ball, a scroll ring and 4 buttons, supplied with a detachable wrist rest.
~$87.65
Clearly Superior Technologies (CST) PC-Trac
The CST PC-Trac is an ambidextrous wired USB trackball with a 2.25-inch central ball; Pro models have three programmable buttons.
Some specs could not be matched to a source · Last verified: 2026-10-17
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Pros
- Symmetrical shape suits left- and right-handed users
- Low-profile case works as a natural hand rest
- Pro models let the middle button be programmed with Superior-X software
- Variants include switch-adapted (SA) models
Cons
- No scroll wheel
- Middle button on non-Pro models is fixed to drag-lock/scroll-lock
- Resolution is only 300 DPI
- Wired USB 1.1 only
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 57.15 mm |
| Ball position | Center |
| Buttons | 3 |
| Scroll | Ball |
| Weight | — |
| Connectivity | USB |
| OS | windows, macos, linux |
| Released | — |
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