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 Thumb Trackball
An open-source, 3D-printed thumb-operated trackball with a PMW-3360 sensor, Omron D2LS-21 switches, a 1.5-inch ball and QMK/VIA firmware.
Some specs could not be matched to a source · Last verified: 2026-10-17
—
Where to buy
This page contains affiliate links. We may earn a commission at no cost to you.
Pros
- Ships with QMK and VIA for button remapping
- Uses a PMW-3360 sensor and Omron D2LS-21 switches
- Fully open-source design files and assembly documentation
- Optional wedge tilts the unit by 20 degrees
Cons
- Roller bearings make a noticeable scratchy noise when the ball moves
- Kit version requires soldering and electronics assembly
- Fully assembled version costs considerably more than the kit
Specs
| Handedness | Right |
|---|---|
| Ball size | 38.1 mm |
| Ball position | Thumb |
| Buttons | — |
| Scroll | Wheel |
| Weight | — |
| Connectivity | USB |
| OS | windows, macos, linux |
| Released | — |
AD · detail-mid
Similar devices
Trackballs
TrackballsKensington SlimBlade Pro
A finger-operated, ambidextrous trackball with a 55mm ball, twist scrolling, and wired, 2.4GHz and Bluetooth connections.
~$119.99
TrackballsELECOM IST M-IT10DR
ELECOM's IST M-IT10DR is a thumb-operated 2.4GHz wireless trackball with a 36mm ball, five buttons and an artificial ruby ball support.
~¥12,430