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 50 mm Desktop Trackball (E50-76A31D)
The NSI E50-76A31D is a USB industrial desktop trackball with a 50 mm ball, an IP68 sealed body and a hall-effect scroll wheel.
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
- IP68 sealing suits rugged environments
- Removable ball makes cleaning easy
- 50 mm ball for precise cursor movement
- Integrated scroll wheel
Cons
- Heavy at about 500 g
- USB only, no wireless
- Aimed at industrial use; no price is published
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 50 mm |
| Ball position | Center |
| Buttons | 3 |
| Scroll | Wheel |
| Weight | 500 g |
| Connectivity | USB |
| OS | windows |
| Released | — |
Sources
AD · detail-mid
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