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
ELECOM M-XT4DRBK
A left-handed, thumb-operated wireless trackball from ELECOM with a roughly 34 mm ball, a 2.4GHz USB receiver, six buttons and a tilt wheel.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~¥12,892
Where to buy
No US retailer found yet. Official site
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Pros
- 2.5 mm artificial ruby support balls resist debris and reduce cleaning frequency
- Switchable 750/1500 count resolution
- Receiver stores in the body; tilt wheel enables horizontal scrolling
- Ball can be removed easily through a hole on the underside
Cons
- Left-hand only design
- No Bluetooth; USB-A receiver connection only
- Warranty is only 6 months
Specs
| Handedness | Left |
|---|---|
| Ball size | 34 mm |
| Ball position | Thumb |
| Buttons | 6 |
| Scroll | Wheel |
| Weight | 128 g |
| Connectivity | USB receiver |
| OS | windows, macos |
| Released | 2015 |
AD · detail-mid
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