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
Ploopy Nano 2 Trackball
A compact, 3D-printed open-source wired trackball with a PAW-3222 sensor and a single button that triggers drag scrolling by default.
Some specs could not be matched to a source · Last verified: 2026-10-17
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Where to buy
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Pros
- Small (62 × 54 × 49 mm) and light at 90 g
- Ships with QMK; the button can be remapped in VIA
- Design files and firmware are fully open-source, so broken parts can be reprinted
- PAW-3222 sensor with up to 4,000 CPI and a polling rate above 1,000 Hz
Cons
- Only one button, so clicking has to come from another device or the keyboard
- Wired USB only; no wireless option
- No upgrade kit for owners of the original Nano
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | — |
| Ball position | Center |
| Buttons | 1 |
| Scroll | Ball |
| Weight | 90 g |
| Connectivity | USB |
| OS | windows, macos, linux |
| Released | 2025 |
Sources
AD · detail-mid
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