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 GRAVI 400-MATB137
A wired, index-finger trackball with a 44mm ball and five buttons, where the left and right clicks are pressed with the thumb.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~¥6,480
Where to buy
No US retailer found yet. Official site
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Pros
- Four cursor speed settings (600/800/1200/1600 counts)
- Five buttons including back/forward, reassignable with the dedicated driver
- Street price of around 5,000 yen is low for an index-finger trackball
Cons
- A reviewer reports the count setting resets to the lowest value after power is cycled
- Fairly heavy at about 212 g
- A reviewer reports a roughly 0.3 s delay when resuming after a few seconds of inactivity
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 44 mm |
| Ball position | Center |
| Buttons | 5 |
| Scroll | None |
| Weight | 212 g |
| Connectivity | USB |
| OS | windows, macos |
| Released | 2022 |
AD · detail-mid
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