KYB-TOUGHBALL2 - Accuratus Toughball 2 - Wireless 2.4GHz Multimedia Mini Keyboard with Trackball – Ceratech Accuratus Limited
Trackball Split Keyboard Will Roll Into Your Heart | Hackaday
Oddball - a split keyboard with trackball
Docooler 2.4GHz Mini Wireless Keyboard with Trackball Mouse Scroll Wheel Black Wireless Remote Control for Android TV Box Smart TV PC Notebook: Amazon.co.uk: Computers & Accessories
This Odd-Looking DIY Keyboard Features a Built-In Trackball - Hackster.io