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
GroupTRON TrackBallBar Slim
A wired, assembled add-on trackball bar with a scroll wheel, designed to be used alongside an existing keyboard.
Some specs could not be matched to a source · Last verified: 2026-10-17
~¥18,000
Where to buy
No US retailer found yet. Official site
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Pros
- Supports both 19mm and 25mm balls
- Customizable with Vial, up to 8 layers
- MX-compatible switches can be swapped
- Assembled; only a USB-C cable is needed
Cons
- Bearing-supported ball is slightly noisy
- 3D-printed PLA case deforms at around 50°C
- Scroll wheel axle is not very strong
- The two USB-C ports must not be connected at the same time
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 25 mm |
| Ball position | Center |
| Buttons | 6 |
| Scroll | Wheel |
| Weight | — |
| Connectivity | USB |
| OS | windows, macos, linux |
| Released | — |
Sources
AD · detail-mid
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