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
NSI Ergonomical Ambidextrous R38 Desktop Trackball
An IP40-sealed industrial desktop trackball from NSI with a 38 mm ball, five switch functions, a button for switching between left- and right-handed use, and a USB connection.
Some specs could not be matched to a source · Last verified: 2026-10-17
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Where to buy
No US retailer found yet. Official site
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Pros
- A dedicated button switches it between left- and right-handed use
- Left, middle, right, forward and back switch functions
- Five resolution settings selected with a single button
- IP40-sealed housing gives basic dust protection
Cons
- Wired USB only, with no wireless option
- Built for industrial and professional buyers and sold by quote request rather than through regular retail
- The pages give no price, dimensions or weight
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 38 mm |
| Ball position | Center |
| Buttons | 5 |
| Scroll | Ball |
| Weight | — |
| Connectivity | USB |
| OS | windows |
| Released | — |
Sources
AD · detail-mid
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