Maltron Ergonomic Keyboard With built in Track-Ball

Maltron Ergonomic Keyboard With built in Track-Ball ... with the fingers cupped and the hand resting over the key thumb group. The top of the ball is slightly below the palm rest surface so that it does not interfere with normal keyboard use.

The central location of the trackball enables either thumb to be used with the wrist kept straight and the hand tilted outwards in a comfortable position.

Action Buttons for the trackball are positioned so that they are operated by the other hand. The placing of the buttons allows the hand to rest in a relaxed state but ready for use. This arrangement ensures that the accurate and careful positioning of the ball is not disturbed when operating an action button.