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
Nulea M501
The Nulea M501 is a right-handed, thumb-operated wireless trackball with a 34mm ball and 6 non-programmable buttons, connecting to up to 3 devices via Bluetooth or a 2.4GHz USB dongle.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~$33.99
Where to buy
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Pros
- Pairs with up to 3 devices over Bluetooth or the 2.4GHz dongle
- Four DPI steps (400/800/1200/1600) via a dedicated button
- Built-in rechargeable battery; receiver stores in the base
- Low price, from $33.99
Cons
- No buttons are programmable
- Forward/back buttons don't work on macOS
- Waking from sleep needs a button click, not ball movement
- Polling rate is only 250Hz on 2.4GHz
Specs
| Handedness | Right |
|---|---|
| Ball size | 34 mm |
| Ball position | Thumb |
| Buttons | 6 |
| Scroll | Wheel |
| Weight | — |
| Connectivity | Bluetooth, USB receiver |
| OS | windows, macos, android, ios |
| Released | 2021 |
Sources
AD · detail-mid
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