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
gohanda_kbd wristball2
The wristball2 is a wireless DIY prototype kit with a 25 mm trackball that sits between the keyboard and wrist rest, with four extra keys.
Key specs auto-matched against source pages · Last verified: 2026-10-17
~¥4,000
Where to buy
No US retailer found yet. Official site
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Pros
- Can be added between an existing keyboard and wrist rest
- Uses a PMW3610 sensor; ZMK pmw_rotation changes the angle in 90-degree steps
- Runs on one AAA battery with Bluetooth
Cons
- Prototype with no author support or build guide
- Case and bearings are not included and must be supplied by the user
- Battery level cannot be checked and battery life may be short
- Requires soldering; currently out of stock
Specs
| Handedness | Ambidextrous |
|---|---|
| Ball size | 25 mm |
| Ball position | Center |
| Buttons | 4 |
| Scroll | None |
| Weight | — |
| Connectivity | Bluetooth |
| OS | windows, macos, linux, ios, android |
| Released | 2025 |
Sources
AD · detail-mid
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