Computer Keyboards
Perixx PERIBOARD-522 Wired Trackball Mechanical Keyboard, Built-in 2.17 Inch Trackball with Pointing and Scrolling Feature, US English Layout
The glossy surface offers smooth movement, perfect for fast moving and multiple screens control work 9 advanced function keys with multimedia and keyboard lock function Easy to removed and clean the trackball by taping it from the bottom hole of the...
https://www.bizrate.co.uk/computerkeyboard/perixx-periboard-522-wired-trackball-mechanical-oid9487761666.html