Qtronix/iOne Trackball

By Xah Lee. Date: 2016-05-23. Last updated: 2018-08-08.

ione libra 90 trackball — iOne Libra 90 PU Ergonomic Trackball Mouse.

51 mm kball
3 standard mouse buttons
PS/2 default with USB adapter
detachable wrist rest pad
High reliable micro-switches
Dimentions: 7.6″ × 4.7″ × 2.4″

ione libra 90 trackball 200mac2 03

ione libra 90 trackball box

ione libra 90 trackball black — Buy at amazon

ione libra 90 trackball black with cable — Buy at amazon

Most amazon reviews say it's ok.

Qtronix

The iOne trackball is sometimes seen as Qtronix brand.

Here is a older model.

qtronics trackball d00d2 — qtronics trackball [image source https://imgur.com/a/WPyQW2d]

qtronics trackball 05864 — qtronics trackball [image source https://imgur.com/a/WPyQW2d]

qtronics trackball f65f7 — qtronics trackball back [image source https://imgur.com/a/WPyQW2d]