The trackball module attaches to the right keyboard half; it features excellent precision and usability and is well-suited to be used by a thumb. The two buttons are fully configurable, and the ball cannot be pressed as a button. Pointer movement versus scrolling can be configured on a per-layer basis. Following is a demonstration of the trackball and key cluster modules.
Every UHK module is compatible with the UHK 60 and UHK 80.
