TrackballsKensington SlimBlade Pro
A finger-operated, ambidextrous trackball with a 55mm ball, twist scrolling, and wired, 2.4GHz and Bluetooth connections.
~$119.99
Kensington 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.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~$87.65
Where to buy
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Pros
- Large 55 mm ball
- Scroll ring allows fingertip scrolling
- Symmetrical design suits either hand
- Wrist rest included
Cons
- Wired only, no wireless option
- Fairly large footprint (about 5 x 5.75 in)
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 55 mm |
| Ball position | Center |
| Buttons | 4 |
| Scroll | Ring |
| Weight | — |
| Connectivity | USB |
| OS | windows, macos, chromeos |
| Released | — |
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