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-XT1URBK
ELECOM's wired USB thumb-operated trackball with five buttons, a precision-slowdown switch and a tilt wheel; now discontinued.
Some specs could not be matched to a source · Last verified: 2026-10-17
~¥7,799
Where to buy
No US retailer found yet. Official site
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Pros
- Slowdown switch temporarily reduces pointer speed for fine targeting
- Tilt wheel enables horizontal scrolling
- Ball can be removed through a hole on the underside for cleaning
- Two resolution settings: 750/1500 counts
Cons
- Wired USB only, no wireless option
- Discontinued product
- Listed OS support is old (Windows 8.1, Mac OS X 10.9)
- Thumb ball on the left side, so not suited to left-handed use
Specs
| Handedness | Right |
|---|---|
| Ball size | — |
| Ball position | Thumb |
| Buttons | 5 |
| Scroll | Wheel |
| Weight | 154 g |
| Connectivity | USB |
| OS | windows, macos |
| Released | 2014 |
Sources
AD · detail-mid
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