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
Sanwa Supply MA-TB44BKN
A wired thumb-operated laser trackball with a 34 mm ball, a palm-filling ergonomic body, and a tilt scroll wheel.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~¥7,200
Where to buy
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Pros
- Ergonomic shape lets all five fingers rest naturally
- Tilt wheel for horizontal scrolling plus back/forward buttons
- Omron switches on the left and right buttons
- Four selectable resolutions from 400 to 1600 counts
Cons
- Wired only; the wireless version is a separate model
- Right-hand thumb-ball shape is not suited to left-handed use
Specs
| Handedness | Right |
|---|---|
| Ball size | 34 mm |
| Ball position | Thumb |
| Buttons | 5 |
| Scroll | Wheel |
| Weight | 154 g |
| Connectivity | USB |
| OS | windows, macos, chromeos |
| Released | 2018 |
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